diff --git a/proxy/http/remap/UrlRewrite.cc b/proxy/http/remap/UrlRewrite.cc
index 70bf234b6..b9007e6ba 100644
--- a/proxy/http/remap/UrlRewrite.cc
+++ b/proxy/http/remap/UrlRewrite.cc
@@ -405,7 +405,7 @@ UrlRewrite::PerformACLFiltering(HttpTransact::State *s, url_mapping *map)
       bool match = true;

       if (rp->method_restriction_enabled) {
-        if (method_wksidx != -1) {
+        if (method_wksidx >= 0) {
           match = rp->standard_method_lookup[method_wksidx];
         } else if (!rp->nonstandard_methods.empty()) {
           match = false;