diff --git a/plugins/prometheus_plugin/include/eosio/prometheus_plugin/simple_rest_server.hpp b/plugins/prometheus_plugin/include/eosio/prometheus_plugin/simple_rest_server.hpp
index f82492df28..c9bef7f05f 100644
--- a/plugins/prometheus_plugin/include/eosio/prometheus_plugin/simple_rest_server.hpp
+++ b/plugins/prometheus_plugin/include/eosio/prometheus_plugin/simple_rest_server.hpp
@@ -67,7 +67,7 @@ namespace eosio { namespace rest {
          try {
             auto res = self()->on_request(std::move(req));
             if (!res)
-               not_found(target);
+               return not_found(target);
             return *res;
          } catch (std::exception& ex) { return server_error(ex.what()); }
       }
diff --git a/tests/TestHarness/queries.py b/tests/TestHarness/queries.py
index e73c3ad06b..5521be8870 100644
--- a/tests/TestHarness/queries.py
+++ b/tests/TestHarness/queries.py
@@ -643,6 +643,8 @@ def processUrllibRequest(self, resource, command, payload={}, silentErrors=False
                         rtn = ex.read()
                     else:
                         unhandledEnumType(returnType)
+            elif returnType==ReturnType.raw:
+                return ex.code
             else:
                 return None
 
diff --git a/tests/plugin_http_api_test.py b/tests/plugin_http_api_test.py
index b020039817..c0fc0cb2ba 100755
--- a/tests/plugin_http_api_test.py
+++ b/tests/plugin_http_api_test.py
@@ -1352,6 +1352,8 @@ def test_prometheusApi(self) :
         self.assertTrue(int(metrics["blocks_produced"]) > 1)
         self.assertTrue(int(metrics["last_irreversible"]) > 1)
 
+        ret = self.nodeos.processUrllibRequest(resource, "m", returnType = ReturnType.raw, method="GET", silentErrors= True, endpoint=endpointPrometheus)
+        self.assertTrue(ret == 404)
 
     def test_multipleRequests(self):
         """Test keep-alive ability of HTTP plugin.  Handle multiple requests in a single session"""