diff --git a/src/middleware.js b/src/middleware.js
index 977920d..32f0470 100644
--- a/src/middleware.js
+++ b/src/middleware.js
@@ -28,12 +28,13 @@ function init(swaggerPath, options) {
                 .forEach(function (currentMethod) {
                     schemas[parsedPath][currentMethod.toLowerCase()] = {};
 
-                    let bodySchema = dereferenced.paths[currentPath][currentMethod].parameters.filter(function (parameter) { return parameter.in === 'body' });
+                    const parameters = dereferenced.paths[currentPath][currentMethod].parameters || [];
+                    let bodySchema = parameters.filter(function (parameter) { return parameter.in === 'body' });
                     if (bodySchema.length > 0) {
                         schemas[parsedPath][currentMethod].body = buildBodyValidation(bodySchema[0].schema, dereferenced.definitions, swaggers[1], currentPath, currentMethod, parsedPath);
                     }
 
-                    let localParameters = dereferenced.paths[currentPath][currentMethod].parameters.filter(function (parameter) {
+                    let localParameters = parameters.filter(function (parameter) {
                         return parameter.in !== 'body';
                     }).concat(pathParameters);
                     if (localParameters.length > 0) {
@@ -49,9 +50,9 @@ function init(swaggerPath, options) {
 
 /**
  * The middleware - should be called for each express route
- * @param {any} req 
- * @param {any} res 
- * @param {any} next 
+ * @param {any} req
+ * @param {any} res
+ * @param {any} next
  * @returns In case of an error will call `next` with `InputValidationError`
  */
 function validate(req, res, next) {
diff --git a/test/pet-store-swagger.yaml b/test/pet-store-swagger.yaml
index 25ca2dd..76aedc6 100644
--- a/test/pet-store-swagger.yaml
+++ b/test/pet-store-swagger.yaml
@@ -145,6 +145,19 @@ paths:
           description: unexpected error
           schema:
             $ref: '#/definitions/Error'
+  /heartbeat:
+    get:
+      summary: Info for current system status
+      operationId: getHearbeat
+      responses:
+        "200":
+          description: Expected response to a valid request
+          schema:
+            $ref: '#/definitions/StatusReport'
+        default:
+          description: unexpected error
+          schema:
+            $ref: '#/definitions/Error'
 definitions:
   Pet:
     required:
@@ -172,6 +185,15 @@ definitions:
         # format: int32
       message:
         type: string
+  StatusReport:
+    required:
+      - text
+      - code
+    properties:
+      text:
+        type: string
+      code:
+        type: string
 parameters:
   ApiVersion:
     name: 'api-version'