diff --git a/src/directive/translate-attr.js b/src/directive/translate-attr.js
index 83b21f429..962dfdb68 100644
--- a/src/directive/translate-attr.js
+++ b/src/directive/translate-attr.js
@@ -72,7 +72,7 @@ function translateAttrDirective($translate, $rootScope) {
       // Main update translations function
       var updateTranslations = function() {
         angular.forEach(translateAttr, function (translationId, attributeName) {
-          if (!translationId) return;
+          if (!translationId) { return; }
           previousAttributes[attributeName] = true;
 
           // if translation id starts with '.' and translateNamespace given, prepend namespace
@@ -94,23 +94,24 @@ function translateAttrDirective($translate, $rootScope) {
             delete previousAttributes[attributeName];
           }
         });
-      }
+      };
 
       // Watch for attribute changes
       watchAttribute(
         scope, attr.translateAttr,
         function (newValue) { translateAttr = newValue; },
-        function() { updateTranslations() }
+        function() { updateTranslations(); }
       );
       // Watch for value changes
       watchAttribute(
         scope, attr.translateValues,
         function (newValue) { translateValues = newValue; },
-        function() { updateTranslations() }
+        function() { updateTranslations(); }
       );
 
-      if (attr.translateValues)
+      if (attr.translateValues) {
         scope.$watch(attr.translateValues, updateTranslations, true);
+      }
 
       // Replaced watcher on translateLanguage with event listener
       scope.$on('translateLanguageChanged', updateTranslations);
@@ -126,7 +127,9 @@ function translateAttrDirective($translate, $rootScope) {
 }
 
 function watchAttribute(scope, attribute, valueCallback, changeCallback) {
-  if (!attribute) return;
+  'use strict';
+
+  if (!attribute) { return; }
   if (attribute.substr(0, 2) === '::') {
     attribute = attribute.substr(2);
   } else {