diff --git a/src/game-lib-d3-api-camera.js b/src/game-lib-d3-api-camera.js
index 0b520a8..e01b175 100644
--- a/src/game-lib-d3-api-camera.js
+++ b/src/game-lib-d3-api-camera.js
@@ -68,7 +68,7 @@ GameLib.D3.API.Camera = function(
     this.fov = fov;
 
     if (GameLib.Utils.UndefinedOrNull(aspect)) {
-        aspect = window.innerWidth / window.innerHeight;
+        aspect = window.screen.availWidth / window.screen.availHeight;
     }
     this.aspect = aspect;
 
diff --git a/src/game-lib-system-render.js b/src/game-lib-system-render.js
index 15855b0..088331e 100644
--- a/src/game-lib-system-render.js
+++ b/src/game-lib-system-render.js
@@ -73,8 +73,8 @@ GameLib.System.Render.prototype.start = function() {
     GameLib.Event.Emit(
         GameLib.Event.WINDOW_RESIZE,
         {
-            width : window.innerWidth,
-            height : window.innerHeight
+            width : window.screen.availWidth,
+            height : window.screen.availHeight
         }
     );
 
@@ -101,8 +101,8 @@ GameLib.System.Render.prototype.nativeWindowResize = function() {
     GameLib.Event.Emit(
         GameLib.Event.WINDOW_RESIZE,
         {
-            width : window.innerWidth,
-            height : window.innerHeight
+            width : window.screen.availWidth,
+            height : window.screen.availHeight
         }
     );
 };