diff --git a/src/handshake.c b/src/handshake.c
index 07203aef..19adbfd9 100644
--- a/src/handshake.c
+++ b/src/handshake.c
@@ -388,11 +388,14 @@ bool handshake_state_derive_ptk(struct handshake_state *s)
 
 	s->ptk_complete = false;
 
-	if (s->akm_suite & (IE_RSN_AKM_SUITE_8021X_SHA256 |
+	if (s->akm_suite & IE_RSN_AKM_SUITE_FILS_SHA384)
+		type = L_CHECKSUM_SHA384;
+	else if (s->akm_suite & (IE_RSN_AKM_SUITE_8021X_SHA256 |
 			IE_RSN_AKM_SUITE_PSK_SHA256 |
 			IE_RSN_AKM_SUITE_SAE_SHA256 |
 			IE_RSN_AKM_SUITE_FT_OVER_SAE_SHA256 |
-			IE_RSN_AKM_SUITE_OWE))
+			IE_RSN_AKM_SUITE_OWE |
+			IE_RSN_AKM_SUITE_FILS_SHA256))
 		type = L_CHECKSUM_SHA256;
 	else
 		type = L_CHECKSUM_SHA1;