diff --git a/packages/parrot-core/__tests__/Parrot.spec.js b/packages/parrot-core/__tests__/Parrot.spec.js
index eafcaae..b79b967 100644
--- a/packages/parrot-core/__tests__/Parrot.spec.js
+++ b/packages/parrot-core/__tests__/Parrot.spec.js
@@ -35,9 +35,10 @@ class ParrotTest extends Parrot {
 
 describe('Parrot', () => {
   it('normalizes scenarios and sets logger', () => {
-    new ParrotTest(); // eslint-disable-line no-new
+    const parrotTest = new ParrotTest();
     expect(normalizeScenarios).toHaveBeenCalledWith({});
     expect(logger.setScenario).toHaveBeenCalledWith(undefined);
+    expect(parrotTest.logger).toBe(logger);
   });
 
   it('should get the active scenario name', () => {
diff --git a/packages/parrot-core/src/Parrot.js b/packages/parrot-core/src/Parrot.js
index 2ed0d5f..47bfc5a 100644
--- a/packages/parrot-core/src/Parrot.js
+++ b/packages/parrot-core/src/Parrot.js
@@ -19,6 +19,7 @@ class Parrot {
     this.scenarios = normalizeScenarios(scenarios);
     [this.activeScenario] = Object.keys(scenarios);
     logger.setScenario(this.activeScenario);
+    this.logger = logger;
   }
 
   getActiveScenario = () => this.activeScenario;
diff --git a/packages/parrot-middleware/__tests__/ParrotMiddleware.spec.js b/packages/parrot-middleware/__tests__/ParrotMiddleware.spec.js
index 0f6f8a7..9cc2edb 100644
--- a/packages/parrot-middleware/__tests__/ParrotMiddleware.spec.js
+++ b/packages/parrot-middleware/__tests__/ParrotMiddleware.spec.js
@@ -14,7 +14,15 @@
 
 import ParrotMiddleware from '../src/ParrotMiddleware';
 
-jest.mock('parrot-core', () => class {});
+jest.mock(
+  'parrot-core',
+  () =>
+    class {
+      constructor() {
+        this.logger = { warn: jest.fn() };
+      }
+    }
+);
 
 describe('ParrotMiddleware', () => {
   it('should normalize', () => {
@@ -27,13 +35,17 @@ describe('ParrotMiddleware', () => {
     });
   });
 
-  it('should call next middleware', () => {
+  it('should call next middleware and log a warning', () => {
     const req = {};
     const res = { headersSent: false };
     const next = jest.fn();
     const parrotMiddleware = new ParrotMiddleware();
     parrotMiddleware.resolver(req, res, next)();
     expect(next).toHaveBeenCalled();
+    expect(parrotMiddleware.logger.warn).toHaveBeenCalledWith(
+      'No matching mock found for request',
+      req.path
+    );
   });
 
   it('should not call next middleware if headers sent', () => {
diff --git a/packages/parrot-middleware/src/ParrotMiddleware.js b/packages/parrot-middleware/src/ParrotMiddleware.js
index 3501987..f48096e 100644
--- a/packages/parrot-middleware/src/ParrotMiddleware.js
+++ b/packages/parrot-middleware/src/ParrotMiddleware.js
@@ -22,6 +22,7 @@ class ParrotMiddleware extends Parrot {
       return;
     }
     if (!response) {
+      this.logger.warn('No matching mock found for request', req.path);
       next();
       return;
     }