diff --git a/src/cw/format.h b/src/cw/format.h
index 5d18a7e3..5c0f5d9b 100644
--- a/src/cw/format.h
+++ b/src/cw/format.h
@@ -81,8 +81,13 @@ static inline int format_hdr_flags(char *dst,uint8_t *th)
 }
 
 
+
 int format_is_utf8(unsigned char *str, size_t len);
 
+int format_dot11_fc(char *dst, uint16_t fc);
+
+
+
 /**@}*/
 
 #endif