diff --git a/src/classic/hfp_ag.c b/src/classic/hfp_ag.c
index 75bf1d6fe..c6f643912 100644
--- a/src/classic/hfp_ag.c
+++ b/src/classic/hfp_ag.c
@@ -2340,6 +2340,7 @@ void hfp_ag_incoming_call(void){
 }
 
 void hfp_ag_outgoing_call_initiated(const char * number) {
+    UNUSED(number);
     hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_INITIATED_BY_AG, NULL);
 }