diff --git a/attrib/interactive.c b/attrib/interactive.c
index 9b16ddf..1d31889 100644
--- a/attrib/interactive.c
+++ b/attrib/interactive.c
@@ -190,6 +190,11 @@ static void primary_all_cb(GSList *services, guint8 status, gpointer user_data)
 		return;
 	}
 
+	if (services == NULL) {
+		rl_printf("No primary service found\n");
+		return;
+	}
+
 	for (l = services; l; l = l->next) {
 		struct gatt_primary *prim = l->data;
 		rl_printf("attr handle: 0x%04x, end grp handle: 0x%04x uuid: %s\n",
@@ -208,6 +213,11 @@ static void primary_by_uuid_cb(GSList *ranges, guint8 status,
 		return;
 	}
 
+	if (ranges == NULL) {
+		rl_printf("No service UUID found\n");
+		return;
+	}
+
 	for (l = ranges; l; l = l->next) {
 		struct att_range *range = l->data;
 		rl_printf("Starting handle: 0x%04x Ending handle: 0x%04x\n",