diff --git a/package.json b/package.json
index c0e29551..6eda00af 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@microsoft.azure/autorest.testserver",
-  "version": "3.0.26",
+  "version": "3.0.27",
   "description": "Autorest test server.",
   "main": "dist/cli/cli.js",
   "bin": {
diff --git a/src/test-routes/parameter-grouping.ts b/src/test-routes/parameter-grouping.ts
new file mode 100644
index 00000000..cf93b6e2
--- /dev/null
+++ b/src/test-routes/parameter-grouping.ts
@@ -0,0 +1,15 @@
+import { app, json, ValidationError } from "../api";
+
+app.category("azure", () => {
+  app.post("/parameterGrouping/postReservedWords", "PostParameterGroupingWithReservedWords", (req) => {
+    if (req.query["from"] !== "bob") {
+      throw new ValidationError("Wrong query value for 'from'", "bob", req.query["from"]);
+    }
+    if (req.query["accept"] !== "yes") {
+      throw new ValidationError("Wrong query value for 'accept'", "yes", req.query["accept"]);
+    }
+    return {
+      status: 200,
+    };
+  });
+});
diff --git a/swagger/azure-parameter-grouping.json b/swagger/azure-parameter-grouping.json
index 33be7db1..b3f151f2 100644
--- a/swagger/azure-parameter-grouping.json
+++ b/swagger/azure-parameter-grouping.json
@@ -112,6 +112,41 @@
         }
       }
     },
+    "/parameterGrouping/postReservedWords": {
+        "post": {
+          "operationId": "parameterGrouping_postReservedWords",
+          "description": "Post a grouped parameters with reserved words",
+          "parameters": [
+            {
+              "name": "from",
+              "in": "query",
+              "description": "'from' is a reserved word. Pass in 'bob' to pass.",
+              "type": "string",
+              "x-ms-parameter-grouping": {
+              }
+            },
+            {
+              "name": "accept",
+              "in": "query",
+              "description": "'accept' is a reserved word. Pass in 'yes' to pass.",
+              "type": "string",
+              "x-ms-parameter-grouping": {
+              }
+            }
+          ],
+          "responses": {
+            "200": {
+              "description": "Success"
+            },
+            "default": {
+              "description": "Unexpected error",
+              "schema": {
+                "$ref": "#/definitions/Error"
+              }
+            }
+          }
+        }
+      },
     "/parameterGrouping/postMultipleParameterGroups": {
       "post": {
         "operationId": "parameterGrouping_postMultiParamGroups",
@@ -228,4 +263,4 @@
       }
     }
   }
-}
\ No newline at end of file
+}