diff --git a/kdc/hprop.c b/kdc/hprop.c
index f1482378f..218afdc16 100644
--- a/kdc/hprop.c
+++ b/kdc/hprop.c
@@ -126,10 +126,10 @@ v5_prop(krb5_context context, HDB *db, hdb_entry *entry, void *appdata)
     return ret;
 }
 
-static char realm_buf[REALM_SZ];
-
 #ifdef KRB4
 
+static char realm_buf[REALM_SZ];
+
 static int
 kdb_prop(void *arg, Principal *p)
 {