diff --git a/effects/squash/package/contents/code/main.js b/effects/squash/package/contents/code/main.js
index 506df7108..c2b822d14 100644
--- a/effects/squash/package/contents/code/main.js
+++ b/effects/squash/package/contents/code/main.js
@@ -1,150 +1,148 @@
 /********************************************************************
  This file is part of the KDE project.
 
  Copyright (C) 2018 Vlad Zagorodniy <vladzzag@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *********************************************************************/
 
+"use strict";
+
 var squashEffect = {
     duration: animationTime(250),
     loadConfig: function () {
-        "use strict";
         squashEffect.duration = animationTime(250);
     },
     slotWindowMinimized: function (window) {
-        "use strict";
         if (effects.hasActiveFullScreenEffect) {
             return;
         }
 
         // If the window doesn't have an icon in the task manager,
         // don't animate it.
         var iconRect = window.iconGeometry;
         if (iconRect.width == 0 || iconRect.height == 0) {
             return;
         }
 
         if (window.unminimizeAnimation) {
             // TODO: Try to reverse it instead.
             cancel(window.unminimizeAnimation);
             delete window.unminimizeAnimation;
         }
 
         var windowRect = window.geometry;
 
         window.minimizeAnimation = animate({
             window: window,
             curve: QEasingCurve.InOutSine,
             duration: squashEffect.duration,
             animations: [
                 {
                     type: Effect.Size,
                     from: {
                         value1: windowRect.width,
                         value2: windowRect.height
                     },
                     to: {
                         value1: iconRect.width,
                         value2: iconRect.height
                     }
                 },
                 {
                     type: Effect.Translation,
                     from: {
                         value1: 0.0,
                         value2: 0.0
                     },
                     to: {
                         value1: iconRect.x - windowRect.x -
                             (windowRect.width - iconRect.width) / 2,
                         value2: iconRect.y - windowRect.y -
                             (windowRect.height - iconRect.height) / 2,
                     }
                 },
                 {
                     type: Effect.Opacity,
                     from: 1.0,
                     to: 0.0
                 }
             ]
         });
     },
     slotWindowUnminimized: function (window) {
-        "use strict";
         if (effects.hasActiveFullScreenEffect) {
             return;
         }
 
         // If the window doesn't have an icon in the task manager,
         // don't animate it.
         var iconRect = window.iconGeometry;
         if (iconRect.width == 0 || iconRect.height == 0) {
             return;
         }
 
         if (window.minimizeAnimation) {
             // TODO: Try to reverse it instead.
             cancel(window.minimizeAnimation);
             delete window.minimizeAnimation;
         }
 
         var windowRect = window.geometry;
 
         window.unminimizeAnimation = animate({
             window: window,
             curve: QEasingCurve.InOutSine,
             duration: squashEffect.duration,
             animations: [
                 {
                     type: Effect.Size,
                     from: {
                         value1: iconRect.width,
                         value2: iconRect.height
                     },
                     to: {
                         value1: windowRect.width,
                         value2: windowRect.height
                     }
                 },
                 {
                     type: Effect.Translation,
                     from: {
                         value1: iconRect.x - windowRect.x -
                             (windowRect.width - iconRect.width) / 2,
                         value2: iconRect.y - windowRect.y -
                             (windowRect.height - iconRect.height) / 2,
                     },
                     to: {
                         value1: 0.0,
                         value2: 0.0
                     }
                 },
                 {
                     type: Effect.Opacity,
                     from: 0.0,
                     to: 1.0
                 }
             ]
         });
     },
     init: function () {
-        "use strict";
         effect.configChanged.connect(squashEffect.loadConfig);
         effects.windowMinimized.connect(squashEffect.slotWindowMinimized);
         effects.windowUnminimized.connect(squashEffect.slotWindowUnminimized);
     }
 };
 
 squashEffect.init();