diff --git a/profiles/audio/manager.c b/profiles/audio/manager.c
index b137f28..8cf4b61 100644
--- a/profiles/audio/manager.c
+++ b/profiles/audio/manager.c
@@ -170,7 +170,7 @@ static int avrcp_probe(struct btd_profile *p, struct btd_device *device,
 static int a2dp_source_connect(struct btd_device *dev,
 						struct btd_profile *profile)
 {
-	const gchar *path = device_get_path(dev);
+	const char *path = device_get_path(dev);
 	struct audio_device *audio_dev;
 
 	DBG("path %s", path);
@@ -187,7 +187,7 @@ static int a2dp_source_connect(struct btd_device *dev,
 static int a2dp_source_disconnect(struct btd_device *dev,
 						struct btd_profile *profile)
 {
-	const gchar *path = device_get_path(dev);
+	const char *path = device_get_path(dev);
 	struct audio_device *audio_dev;
 
 	DBG("path %s", path);
@@ -204,7 +204,7 @@ static int a2dp_source_disconnect(struct btd_device *dev,
 static int a2dp_sink_connect(struct btd_device *dev,
 						struct btd_profile *profile)
 {
-	const gchar *path = device_get_path(dev);
+	const char *path = device_get_path(dev);
 	struct audio_device *audio_dev;
 
 	DBG("path %s", path);
@@ -221,7 +221,7 @@ static int a2dp_sink_connect(struct btd_device *dev,
 static int a2dp_sink_disconnect(struct btd_device *dev,
 						struct btd_profile *profile)
 {
-	const gchar *path = device_get_path(dev);
+	const char *path = device_get_path(dev);
 	struct audio_device *audio_dev;
 
 	DBG("path %s", path);
@@ -238,7 +238,7 @@ static int a2dp_sink_disconnect(struct btd_device *dev,
 static int avrcp_control_connect(struct btd_device *dev,
 						struct btd_profile *profile)
 {
-	const gchar *path = device_get_path(dev);
+	const char *path = device_get_path(dev);
 	struct audio_device *audio_dev;
 
 	DBG("path %s", path);
@@ -255,7 +255,7 @@ static int avrcp_control_connect(struct btd_device *dev,
 static int avrcp_control_disconnect(struct btd_device *dev,
 						struct btd_profile *profile)
 {
-	const gchar *path = device_get_path(dev);
+	const char *path = device_get_path(dev);
 	struct audio_device *audio_dev;
 
 	DBG("path %s", path);
diff --git a/profiles/cups/main.c b/profiles/cups/main.c
index f990b93..2079812 100644
--- a/profiles/cups/main.c
+++ b/profiles/cups/main.c
@@ -63,9 +63,9 @@ struct context_data {
 };
 
 static void element_start(GMarkupParseContext *context,
-				const gchar *element_name,
-				const gchar **attribute_names,
-				const gchar **attribute_values,
+				const char *element_name,
+				const char **attribute_names,
+				const char **attribute_values,
 				gpointer user_data, GError **err)
 {
 	struct context_data *ctx_data = user_data;
diff --git a/profiles/cyclingspeed/cyclingspeed.c b/profiles/cyclingspeed/cyclingspeed.c
index 941b593..f016131 100644
--- a/profiles/cyclingspeed/cyclingspeed.c
+++ b/profiles/cyclingspeed/cyclingspeed.c
@@ -144,7 +144,7 @@ static const char * const location_enum[] = {
 	"rear-dropout", "chainstay", "rear-wheel", "rear-hub"
 };
 
-static const gchar *location2str(uint8_t value)
+static const char *location2str(uint8_t value)
 {
 	if (value < G_N_ELEMENTS(location_enum))
 		return location_enum[value];
@@ -513,7 +513,7 @@ static void update_watcher(gpointer data, gpointer user_data)
 	struct watcher *w = data;
 	struct measurement *m = user_data;
 	struct csc *csc = m->csc;
-	const gchar *path = device_get_path(csc->dev);
+	const char *path = device_get_path(csc->dev);
 	DBusMessageIter iter;
 	DBusMessageIter dict;
 	DBusMessage *msg;
diff --git a/profiles/health/hdp.c b/profiles/health/hdp.c
index e637420..44448c4 100644
--- a/profiles/health/hdp.c
+++ b/profiles/health/hdp.c
@@ -2124,7 +2124,7 @@ static const GDBusPropertyTable health_device_properties[] = {
 static struct hdp_device *create_health_device(struct btd_device *device)
 {
 	struct btd_adapter *adapter = device_get_adapter(device);
-	const gchar *path = device_get_path(device);
+	const char *path = device_get_path(device);
 	struct hdp_device *dev;
 	GSList *l;
 
diff --git a/profiles/heartrate/heartrate.c b/profiles/heartrate/heartrate.c
index 7ee9325..bc98683 100644
--- a/profiles/heartrate/heartrate.c
+++ b/profiles/heartrate/heartrate.c
@@ -104,7 +104,7 @@ static const char * const location_enum[] = {
 	"foot",
 };
 
-static const gchar *location2str(uint8_t value)
+static const char *location2str(uint8_t value)
 {
 	 if (value < G_N_ELEMENTS(location_enum))
 		return location_enum[value];
@@ -265,7 +265,7 @@ static void update_watcher(gpointer data, gpointer user_data)
 	struct watcher *w = data;
 	struct measurement *m = user_data;
 	struct heartrate *hr = m->hr;
-	const gchar *path = device_get_path(hr->dev);
+	const char *path = device_get_path(hr->dev);
 	DBusMessageIter iter;
 	DBusMessageIter dict;
 	DBusMessage *msg;
diff --git a/profiles/input/hog.c b/profiles/input/hog.c
index a9018f5..7f13abc 100644
--- a/profiles/input/hog.c
+++ b/profiles/input/hog.c
@@ -865,7 +865,7 @@ static void remove_device(gpointer a, gpointer b)
 
 static void hog_remove(struct btd_profile *p, struct btd_device *device)
 {
-	const gchar *path = device_get_path(device);
+	const char *path = device_get_path(device);
 
 	DBG("path %s", path);
 
diff --git a/profiles/input/manager.c b/profiles/input/manager.c
index 145f8a0..a06edd2 100644
--- a/profiles/input/manager.c
+++ b/profiles/input/manager.c
@@ -47,7 +47,7 @@ static int idle_timeout = 0;
 
 static void input_remove(struct btd_device *device, const char *uuid)
 {
-	const gchar *path = device_get_path(device);
+	const char *path = device_get_path(device);
 
 	DBG("path %s", path);
 
@@ -57,7 +57,7 @@ static void input_remove(struct btd_device *device, const char *uuid)
 static int hid_device_probe(struct btd_profile *p, struct btd_device *device,
 								GSList *uuids)
 {
-	const gchar *path = device_get_path(device);
+	const char *path = device_get_path(device);
 	const sdp_record_t *rec = btd_device_get_record(device, uuids->data);
 
 	DBG("path %s", path);
diff --git a/profiles/input/suspend-dummy.c b/profiles/input/suspend-dummy.c
index 4c56c84..75dd536 100644
--- a/profiles/input/suspend-dummy.c
+++ b/profiles/input/suspend-dummy.c
@@ -50,7 +50,7 @@ static int fifo_open(void);
 
 static gboolean read_fifo(GIOChannel *io, GIOCondition cond, gpointer user_data)
 {
-	gchar buffer[12];
+	char buffer[12];
 	gsize offset, left, bread;
 	GIOStatus iostatus;
 
diff --git a/profiles/network/manager.c b/profiles/network/manager.c
index ffab55b..79517d0 100644
--- a/profiles/network/manager.c
+++ b/profiles/network/manager.c
@@ -101,7 +101,7 @@ static int panu_disconnect(struct btd_device *dev, struct btd_profile *profile)
 
 static int panu_server_probe(struct btd_profile *p, struct btd_adapter *adapter)
 {
-	const gchar *path = adapter_get_path(adapter);
+	const char *path = adapter_get_path(adapter);
 
 	DBG("path %s", path);
 
@@ -111,7 +111,7 @@ static int panu_server_probe(struct btd_profile *p, struct btd_adapter *adapter)
 static void panu_server_remove(struct btd_profile *p,
 						struct btd_adapter *adapter)
 {
-	const gchar *path = adapter_get_path(adapter);
+	const char *path = adapter_get_path(adapter);
 
 	DBG("path %s", path);
 
@@ -138,7 +138,7 @@ static int gn_disconnect(struct btd_device *dev, struct btd_profile *profile)
 
 static int gn_server_probe(struct btd_profile *p, struct btd_adapter *adapter)
 {
-	const gchar *path = adapter_get_path(adapter);
+	const char *path = adapter_get_path(adapter);
 
 	DBG("path %s", path);
 
@@ -148,7 +148,7 @@ static int gn_server_probe(struct btd_profile *p, struct btd_adapter *adapter)
 static void gn_server_remove(struct btd_profile *p,
 						struct btd_adapter *adapter)
 {
-	const gchar *path = adapter_get_path(adapter);
+	const char *path = adapter_get_path(adapter);
 
 	DBG("path %s", path);
 
@@ -175,7 +175,7 @@ static int nap_disconnect(struct btd_device *dev, struct btd_profile *profile)
 
 static int nap_server_probe(struct btd_profile *p, struct btd_adapter *adapter)
 {
-	const gchar *path = adapter_get_path(adapter);
+	const char *path = adapter_get_path(adapter);
 
 	DBG("path %s", path);
 
@@ -185,7 +185,7 @@ static int nap_server_probe(struct btd_profile *p, struct btd_adapter *adapter)
 static void nap_server_remove(struct btd_profile *p,
 						struct btd_adapter *adapter)
 {
-	const gchar *path = adapter_get_path(adapter);
+	const char *path = adapter_get_path(adapter);
 
 	DBG("path %s", path);
 
diff --git a/profiles/thermometer/thermometer.c b/profiles/thermometer/thermometer.c
index 074bd4a..2a07eac 100644
--- a/profiles/thermometer/thermometer.c
+++ b/profiles/thermometer/thermometer.c
@@ -133,7 +133,7 @@ static const char * const temp_type[] = {
 	"tympanum"
 };
 
-static const gchar *temptype2str(uint8_t value)
+static const char *temptype2str(uint8_t value)
 {
 	 if (value > 0 && value < G_N_ELEMENTS(temp_type))
 		return temp_type[value];
@@ -277,7 +277,7 @@ static void update_watcher(gpointer data, gpointer user_data)
 {
 	struct watcher *w = data;
 	struct measurement *m = user_data;
-	const gchar *path = device_get_path(m->t->dev);
+	const char *path = device_get_path(m->t->dev);
 	DBusMessageIter iter;
 	DBusMessageIter dict;
 	DBusMessage *msg;
@@ -1164,7 +1164,7 @@ static void attio_disconnected_cb(gpointer user_data)
 static int thermometer_register(struct btd_device *device,
 						struct gatt_primary *tattr)
 {
-	const gchar *path = device_get_path(device);
+	const char *path = device_get_path(device);
 	struct thermometer *t;
 	struct btd_adapter *adapter;
 	struct thermometer_adapter *tadapter;