diff --git a/src/eap_peer/eap.c b/src/eap_peer/eap.c
index 5ca24603e..28bb0442a 100644
--- a/src/eap_peer/eap.c
+++ b/src/eap_peer/eap.c
@@ -412,7 +412,7 @@ static char * eap_get_realm(struct eap_sm *sm, struct eap_peer_config *config)
 		}
 	}
 
-	return os_strdup("");
+	return NULL;
 }