diff --git a/src/classic/sdp_util.c b/src/classic/sdp_util.c
index dfb1244cf..03dfaf9d5 100644
--- a/src/classic/sdp_util.c
+++ b/src/classic/sdp_util.c
@@ -42,7 +42,8 @@
 #include "classic/sdp_util.h"
 #include "utils.h"
 #include "btstack-config.h"
-
+#include "bluetooth.h"
+ 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>