diff --git a/android/android-tester.c b/android/android-tester.c
index ff29675..168d48f 100644
--- a/android/android-tester.c
+++ b/android/android-tester.c
@@ -147,7 +147,7 @@ struct hh_cb_data {
 	int size;
 };
 
-static char exec_dir[PATH_MAX + 1];
+static char exec_dir[PATH_MAX];
 
 static gint scheduled_cbacks_num = 0;
 
@@ -604,7 +604,7 @@ static void test_post_teardown(const void *test_data)
 
 static void bluetoothd_start(int hci_index)
 {
-	char prg_name[PATH_MAX + 1];
+	char prg_name[PATH_MAX];
 	char index[8];
 	char *prg_argv[5];
 
diff --git a/android/ipc-tester.c b/android/ipc-tester.c
index 99cc31f..5ca236a 100644
--- a/android/ipc-tester.c
+++ b/android/ipc-tester.c
@@ -81,7 +81,7 @@ struct regmod_msg {
 #define CONNECT_TIMEOUT (5 * 1000)
 #define SERVICE_NAME "bluetoothd"
 
-static char exec_dir[PATH_MAX + 1];
+static char exec_dir[PATH_MAX];
 
 static int cmd_sk = -1;
 static int notif_sk = -1;
@@ -218,7 +218,7 @@ static void test_post_teardown(const void *data)
 
 static void bluetoothd_start(int hci_index)
 {
-	char prg_name[PATH_MAX + 1];
+	char prg_name[PATH_MAX];
 	char index[8];
 	char *prg_argv[4];
 
diff --git a/android/system-emulator.c b/android/system-emulator.c
index 4d41fce..4adc109 100644
--- a/android/system-emulator.c
+++ b/android/system-emulator.c
@@ -42,7 +42,7 @@
 
 #include "monitor/mainloop.h"
 
-static char exec_dir[PATH_MAX + 1];
+static char exec_dir[PATH_MAX];
 
 static pid_t daemon_pid = -1;
 static pid_t snoop_pid = -1;
@@ -82,7 +82,7 @@ static void run_bluetoothd(char *prg_name)
 
 static void ctl_start(void)
 {
-	char prg_name[PATH_MAX + 1];
+	char prg_name[PATH_MAX];
 	pid_t pid;
 
 	snprintf(prg_name, sizeof(prg_name), "%s/%s", exec_dir, "bluetoothd");
@@ -110,7 +110,7 @@ static void ctl_start(void)
 
 static void snoop_start(void)
 {
-	char prg_name[PATH_MAX + 1];
+	char prg_name[PATH_MAX];
 	char *prg_argv[3];
 	char *prg_envp[1];
 	pid_t pid;