diff --git a/cli/domain/mock.js b/cli/domain/mock.js
index 701138354..c93795f1a 100644
--- a/cli/domain/mock.js
+++ b/cli/domain/mock.js
@@ -23,7 +23,7 @@ module.exports = function(){
       }
 
       var pluginType = 'static';
-      if(fs.existsSync(path.resolve(params.targetValue))){
+      if(fs.existsSync(path.resolve(params.targetValue.toString()))){
         pluginType = 'dynamic';
       }
 
diff --git a/test/unit/cli-domain-mock.js b/test/unit/cli-domain-mock.js
index 44576bb9e..7061f3b64 100644
--- a/test/unit/cli-domain-mock.js
+++ b/test/unit/cli-domain-mock.js
@@ -75,6 +75,33 @@ describe('cli : domain : mock', function(){
     });
   });
 
+  describe('when mocking a static plugin using a bool value', function(){
+
+    var data;
+    beforeEach(function(done){
+      data = initialise();
+
+      data.fs.readJson.yields(null, { something: 'hello' });
+      data.fs.writeJson.yields(null, 'ok');
+
+      executeMocking(data.local, 'plugin', 'isTrue', false, done);
+    });
+
+    it('should add mock to oc.json', function(){
+      expect(data.fs.writeJson.called).to.be.true;
+      expect(data.fs.writeJson.args[0][1]).to.eql({
+        something: 'hello',
+        mocks: {
+          plugins: {
+            static: {
+              isTrue: false
+            }
+          }
+        }
+      });
+    });
+  });
+
   describe('when mocking a dynamic plugin', function(){
 
     var data;