diff --git a/src/utils/common.h b/src/utils/common.h
index 651ce2eb5..6f2cfbabc 100644
--- a/src/utils/common.h
+++ b/src/utils/common.h
@@ -518,6 +518,11 @@ static inline int is_broadcast_ether_addr(const u8 *a)
 	return (a[0] & a[1] & a[2] & a[3] & a[4] & a[5]) == 0xff;
 }
 
+static inline int is_multicast_ether_addr(const u8 *a)
+{
+	return a[0] & 0x01;
+}
+
 #define broadcast_ether_addr (const u8 *) "\xff\xff\xff\xff\xff\xff"
 
 #include "wpa_debug.h"