Compiler warning fix.

--HG--
branch : HEAD

diff --git a/src/auth/passdb-vpopmail.c b/src/auth/passdb-vpopmail.c
index 86d38ade278e8ddd867190d083dea137ca6fbda0..292ff3b6acef8ccd9defe0309a424640a513e959 100644 (file)
--- a/src/auth/passdb-vpopmail.c
+++ b/src/auth/passdb-vpopmail.c
@@ -98,7 +98,7 @@ static void vpopmail_lookup_credentials(struct auth_request *request,
 
        password = vpopmail_password_lookup(request, TRUE, &result);
        if (password == NULL) {
-               callback(result, "", 0, request);
+               callback(result, NULL, 0, request);
                return;
        }