diff --git a/src/openvpnserv/interactive.c b/src/openvpnserv/interactive.c
index ec80a30..006f748 100644
--- a/src/openvpnserv/interactive.c
+++ b/src/openvpnserv/interactive.c
@@ -2106,7 +2106,7 @@
 ListContainsDomain(PCWSTR list, PCWSTR domain, size_t len)
 {
     PCWSTR match = list;
-    while (TRUE)
+    while (match)
     {
         match = wcsstr(match, domain);
         if (!match)