diff --git a/lib/libradius/radlib.h b/lib/libradius/radlib.h
index a4793187892..e9b7a87f123 100644
--- a/lib/libradius/radlib.h
+++ b/lib/libradius/radlib.h
@@ -98,7 +98,7 @@
 #define RAD_TERMINATION_ACTION		29	/* Integer */
 #define RAD_CALLED_STATION_ID		30	/* String */
 #define RAD_CALLING_STATION_ID		31	/* String */
-#define RAD_NAS_IDENTIFIER		32	/* Integer */
+#define RAD_NAS_IDENTIFIER		32	/* String */
 #define RAD_PROXY_STATE			33	/* Integer */
 #define RAD_LOGIN_LAT_SERVICE		34	/* Integer */
 #define RAD_LOGIN_LAT_NODE		35	/* Integer */