diff --git a/src/scripts/utils/ext.js b/src/scripts/utils/ext.js
index a609883..ee129bc 100644
--- a/src/scripts/utils/ext.js
+++ b/src/scripts/utils/ext.js
@@ -47,7 +47,7 @@ function Extension () {
       }
     } catch (e) {}
     try {
-      _this.api = browser.extension[api]
+      _this[api] = browser.extension[api]
     } catch (e) {}
   })
 
@@ -65,4 +65,4 @@ function Extension () {
 
 }
 
-module.exports = new Extension();
\ No newline at end of file
+module.exports = new Extension();