diff --git a/src/classic/avrcp.c b/src/classic/avrcp.c
index bc976a960..3f75ec71a 100644
--- a/src/classic/avrcp.c
+++ b/src/classic/avrcp.c
@@ -1179,7 +1179,7 @@ static void avrcp_handle_can_send_now(avrcp_connection_t * connection){
     }
 }
 
-static uint16_t avdtp_get_next_avrcp_cid(){
+static uint16_t avdtp_get_next_avrcp_cid(void){
     avrcp_cid_counter++;
     if (avrcp_cid_counter == 0){
         avrcp_cid_counter = 1;