diff --git a/app/scripts/_app.js b/app/scripts/_app.js
index 62098ef552..3f2c2ccc1b 100644
--- a/app/scripts/_app.js
+++ b/app/scripts/_app.js
@@ -271,17 +271,17 @@
     }
   }
 
-  function initMousewheelZoomForElectron($document, IS_ELECTRON) {
+  function initMousewheelZoomForElectron($document, $window, IS_ELECTRON) {
     if (IS_ELECTRON) {
       const { webFrame } = require('electron');
 
-      Hamster($document[0]).wheel(function (event, delta, deltaX, deltaY) {
+      $window.Hamster($document[0]).wheel(function (event, delta, deltaX, deltaY) {
         if (event.originalEvent && event.originalEvent.ctrlKey) {
           const zoomFactor = webFrame.getZoomFactor();
           if (deltaY === 1) {
-            webFrame.setZoomFactor(zoomFactor + 0.05)
+            webFrame.setZoomFactor(zoomFactor + 0.05);
           } else if (deltaY === -1) {
-            webFrame.setZoomFactor(zoomFactor - 0.05)
+            webFrame.setZoomFactor(zoomFactor - 0.05);
           }
         }
       });
diff --git a/app/scripts/agenda-and-history/agenda-and-history-d.js b/app/scripts/agenda-and-history/agenda-and-history-d.js
index 949dff8363..d9ffbef127 100644
--- a/app/scripts/agenda-and-history/agenda-and-history-d.js
+++ b/app/scripts/agenda-and-history/agenda-and-history-d.js
@@ -26,7 +26,7 @@
 
   /* @ngInject */
   function AgendaAndHistoryCtrl() {
-    let vm = this;
+    //let vm = this;
   }
 
 })();
diff --git a/app/scripts/constants.js b/app/scripts/constants.js
index 8b01453446..ca7c9897bb 100644
--- a/app/scripts/constants.js
+++ b/app/scripts/constants.js
@@ -69,5 +69,5 @@
         'grey',
         'blue-grey'
       ]
-    )
+    );
 })();
diff --git a/app/scripts/main/global-services/tasks-s.js b/app/scripts/main/global-services/tasks-s.js
index bc9076214f..e7a9f3baf3 100644
--- a/app/scripts/main/global-services/tasks-s.js
+++ b/app/scripts/main/global-services/tasks-s.js
@@ -342,7 +342,7 @@
       const backlogT = this.getBacklog();
       const doneBacklogT = this.getDoneBacklog();
 
-      return _.concat(todaysT, backlogT, doneBacklogT)
+      return _.concat(todaysT, backlogT, doneBacklogT);
     };
 
     this.flattenTasks = (tasks, checkFnParent, checkFnSub) => {