diff --git a/packages/grpc-native-core/src/client.js b/packages/grpc-native-core/src/client.js
index 31a1738c..8cfa19fa 100644
--- a/packages/grpc-native-core/src/client.js
+++ b/packages/grpc-native-core/src/client.js
@@ -939,9 +939,11 @@ exports.makeClientConstructor = function(methods, serviceName,
       throw new Error('Method names cannot start with $');
     }
     var method_type = common.getMethodType(attrs);
-    var method_func = _.partial(requester_funcs[method_type], attrs.path,
-                                attrs.requestSerialize,
-                                attrs.responseDeserialize);
+    var method_func = function() {
+      return requester_funcs[method_type].apply(this, arguments.concat([
+        attrs.path, attrs.requestSerialize, attrs.responseDeserialize
+      ]));
+    };
     if (class_options.deprecatedArgumentOrder) {
       ServiceClient.prototype[name] =
         deprecated_request_wrap[method_type](method_func);