diff --git a/bower.json b/bower.json
index e1f6533..13ddd73 100644
--- a/bower.json
+++ b/bower.json
@@ -1,7 +1,7 @@
 {
   "name": "postpone",
   "main": "index.js",
-  "version": "0.6.2",
+  "version": "0.6.3",
   "homepage": "https://github.com/lsvx/postpone",
   "authors": [
     "Lucas Serven <lserven@gmail.com>"
diff --git a/component.json b/component.json
index d811764..fd860e6 100644
--- a/component.json
+++ b/component.json
@@ -2,7 +2,7 @@
   "name": "postpone",
   "repo": "lsvx/postpone",
   "description": "A polyfill for postponing the loading of media.",
-  "version": "0.6.2",
+  "version": "0.6.3",
   "keywords": ["postpone", "media", "resource", "priority", "download"],
   "dependencies": {},
   "development": {},
diff --git a/index.js b/index.js
index 369f301..77276f6 100644
--- a/index.js
+++ b/index.js
@@ -139,7 +139,7 @@
                 if ( this.isVisible( matches[ i ] ) ) {
                     visible.push( matches[ i ] );
                     /** Check if this element is not already postponed. */
-                    if ( !~this.elements.visible.indexOf( matches[ i ] ) ) {
+                    if ( matches[ i ] !== this.elements.visible[ visible.length - 1 ] ) {
                         change = true;
                     }
                 }
diff --git a/package.json b/package.json
index a4af471..76a554c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "postpone",
-  "version": "0.6.2",
+  "version": "0.6.3",
   "description": "A polyfill for postponing the loading of media.",
   "main": "index.js",
   "directories": {
diff --git a/test/build.js b/test/build.js
index 0918455..19da7d2 100644
--- a/test/build.js
+++ b/test/build.js
@@ -341,7 +341,7 @@ require.register("postpone/index.js", Function("exports, require, module",
                 if ( this.isVisible( matches[ i ] ) ) {\n\
                     visible.push( matches[ i ] );\n\
                     /** Check if this element is not already postponed. */\n\
-                    if ( !~this.elements.visible.indexOf( matches[ i ] ) ) {\n\
+                    if ( matches[ i ] !== this.elements.visible[ visible.length - 1 ] ) {\n\
                         change = true;\n\
                     }\n\
                 }\n\