diff --git a/js/views/sideMenuView.js b/js/views/sideMenuView.js
index 07a7815041..7dc82e0421 100644
--- a/js/views/sideMenuView.js
+++ b/js/views/sideMenuView.js
@@ -24,10 +24,14 @@
       this.isEnabled = isEnabled;
     },
     bringUp: function() {
-      this.el.style.zIndex = 0;
+      if(this.el.style.zIndex !== '0') {
+        this.el.style.zIndex = '0';
+      }
     },
     pushDown: function() {
-      this.el.style.zIndex = -1;
+      if(this.el.style.zIndex !== '-1') {
+        this.el.style.zIndex = '-1';
+      }
     }
   });