diff --git a/src/service.js b/src/service.js
index 96624e7..c7933da 100644
--- a/src/service.js
+++ b/src/service.js
@@ -178,7 +178,7 @@
                     conf.hl = conf.lang || config.lang;
                     conf.badge = conf.badge || config.badge;
 
-                    if (!conf.sitekey || conf.sitekey.length !== 40) {
+                    if (!conf.sitekey) {
                         throwNoKeyException();
                     }
                     return getRecaptcha().then(function (recaptcha) {
diff --git a/tests/directive_test.js b/tests/directive_test.js
index accc812..67e127b 100644
--- a/tests/directive_test.js
+++ b/tests/directive_test.js
@@ -36,20 +36,6 @@ describe('directive: vcRecaptcha', function () {
             elementHtml     = '<div vc-recaptcha></div>';
             expectedMessage = 'You need to set the "key" attribute to your public reCaptcha key. If you don\'t have a key, please get one from https://www.google.com/recaptcha/admin/create';
         });
-
-        it('should throw an error - key length is not 40 caracters long', function () {
-            elementHtml     = '<div vc-recaptcha key="key"></div>';
-            expectedMessage = 'You need to set the "key" attribute to your public reCaptcha key. If you don\'t have a key, please get one from https://www.google.com/recaptcha/admin/create';
-
-            $scope.key = 'abc';
-        });
-
-        it('should throw an error - key length is not 40 caracters long - key changed', function () {
-            elementHtml     = '<div vc-recaptcha key="key"></div>';
-            expectedMessage = 'You need to set the "key" attribute to your public reCaptcha key. If you don\'t have a key, please get one from https://www.google.com/recaptcha/admin/create';
-
-            $scope.key = 'abc1';
-        });
     });
 
     describe('widgetId', function () {