diff --git a/test/hfp/mock.c b/test/hfp/mock.c
index bb61191a1..0ccaf7d85 100644
--- a/test/hfp/mock.c
+++ b/test/hfp/mock.c
@@ -303,6 +303,10 @@ void rfcomm_accept_connection(uint16_t rfcomm_cid){
 	// printf("rfcomm_accept_connection \n");
 }
 
+void rfcomm_decline_connection(uint16_t rfcomm_cid){
+    // printf("rfcomm_accept_connection \n");
+}
+
 void btstack_run_loop_add_timer(btstack_timer_source_t *timer){
 }