diff --git a/src/ie.h b/src/ie.h
index 857efb5d..bda58366 100644
--- a/src/ie.h
+++ b/src/ie.h
@@ -296,6 +296,12 @@ enum ie_rsn_akm_suite {
 	 (akm == IE_RSN_AKM_SUITE_FT_OVER_FILS_SHA256) || \
 	 (akm == IE_RSN_AKM_SUITE_FT_OVER_FILS_SHA384))
 
+#define IE_AKM_IS_FILS(akm) \
+	((akm == IE_RSN_AKM_SUITE_FILS_SHA256) || \
+	 (akm == IE_RSN_AKM_SUITE_FILS_SHA384) || \
+	 (IE_RSN_AKM_SUITE_FT_OVER_FILS_SHA256) || \
+	 (IE_RSN_AKM_SUITE_FT_OVER_FILS_SHA384))
+
 #define IE_LEN(ie) \
 	(ie) ? (ie)[1] + 2 : 0