diff --git a/package.json b/package.json
index babd96a5..3d3cf09c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "inversify-express-utils",
-  "version": "5.1.1",
+  "version": "5.1.2",
   "description": "Some utilities for the development of express applications with Inversify",
   "main": "lib/index.js",
   "jsnext:main": "es/index.js",
diff --git a/src/debug.ts b/src/debug.ts
index aa5dbfc7..13e669c0 100644
--- a/src/debug.ts
+++ b/src/debug.ts
@@ -22,40 +22,43 @@ export function getRouteInfo(container: inversifyInterfaces.Container) {
             const method = m.method.toUpperCase();
             const controllerPath = r.controllerMetadata.path;
             const actionPath = m.path;
-            const paramMetadata = r.parameterMetadata[m.key] || undefined;
+            const paramMetadata = r.parameterMetadata;
             let args: string[] | undefined = undefined;
 
-            if (paramMetadata) {
-                args = (r.parameterMetadata[m.key] || []).map(a => {
-                    let type = "";
-                    switch (a.type) {
-                        case PARAMETER_TYPE.RESPONSE:
-                            type = "@response";
-                            break;
-                        case PARAMETER_TYPE.REQUEST:
-                            type = "@request";
-                            break;
-                        case PARAMETER_TYPE.NEXT:
-                            type = "@next";
-                            break;
-                        case PARAMETER_TYPE.PARAMS:
-                            type = "@requestParam";
-                            break;
-                        case PARAMETER_TYPE.QUERY:
-                            type = "queryParam";
-                            break;
-                        case PARAMETER_TYPE.BODY:
-                            type = "@requestBody";
-                            break;
-                        case PARAMETER_TYPE.HEADERS:
-                            type = "@requestHeaders";
-                            break;
-                        case PARAMETER_TYPE.COOKIES:
-                            type = "@cookies";
-                            break;
-                    }
-                    return `${type} ${a.parameterName}`;
-                });
+            if (paramMetadata !== undefined ) {
+                const paramMetadataForKey = paramMetadata[m.key] || undefined;
+                if (paramMetadataForKey) {
+                    args = (r.parameterMetadata[m.key] || []).map(a => {
+                        let type = "";
+                        switch (a.type) {
+                            case PARAMETER_TYPE.RESPONSE:
+                                type = "@response";
+                                break;
+                            case PARAMETER_TYPE.REQUEST:
+                                type = "@request";
+                                break;
+                            case PARAMETER_TYPE.NEXT:
+                                type = "@next";
+                                break;
+                            case PARAMETER_TYPE.PARAMS:
+                                type = "@requestParam";
+                                break;
+                            case PARAMETER_TYPE.QUERY:
+                                type = "queryParam";
+                                break;
+                            case PARAMETER_TYPE.BODY:
+                                type = "@requestBody";
+                                break;
+                            case PARAMETER_TYPE.HEADERS:
+                                type = "@requestHeaders";
+                                break;
+                            case PARAMETER_TYPE.COOKIES:
+                                type = "@cookies";
+                                break;
+                        }
+                        return `${type} ${a.parameterName}`;
+                    });
+                }
             }
 
             const details = {
diff --git a/test/debug.test.ts b/test/debug.test.ts
index 5b9663b0..f19a7900 100644
--- a/test/debug.test.ts
+++ b/test/debug.test.ts
@@ -107,4 +107,43 @@ describe("Debug utils", () => {
 
     });
 
+    it("should be able to handle missig parameter metadata", () => {
+
+        let container = new Container();
+
+        @controller("/api/order")
+        class OrderController extends BaseHttpController {
+            @httpGet("/")
+            public get() {
+                return {};
+            }
+            @httpPost("/")
+            public post() {
+                return {};
+            }
+        }
+
+        const TYPES = {
+            OrderController: OrderController.name
+        };
+
+        let server = new InversifyExpressServer(container);
+        let app = server.build();
+
+        const routeInfo = getRouteInfo(container);
+
+        console.log(
+            prettyjson.render({ CONTROLLERS: routeInfo })
+        );
+
+        console.log(routeInfo);
+
+        expect(routeInfo[0].controller).to.eq(TYPES.OrderController);
+        expect(routeInfo[0].endpoints[0].route).to.eq("GET /api/order/");
+        expect(routeInfo[0].endpoints[0].args).to.eq(undefined);
+        expect(routeInfo[0].endpoints[1].route).to.eq("POST /api/order/");
+        expect(routeInfo[0].endpoints[1].args).to.eq(undefined);
+
+    });
+
 });