diff --git a/src/android/InAppBrowser.java b/src/android/InAppBrowser.java
index 6612a66..7415364 100644
--- a/src/android/InAppBrowser.java
+++ b/src/android/InAppBrowser.java
@@ -200,7 +200,7 @@ public class InAppBrowser extends CordovaPlugin {
         else if (action.equals("injectScriptCode")) {
             String jsWrapper = null;
             if (args.getBoolean(1)) {
-                jsWrapper = String.format("prompt(JSON.stringify([eval(%%s)]), 'gap-iab://%s')", callbackContext.getCallbackId());
+                jsWrapper = String.format("(function(){prompt(JSON.stringify([eval(%%s)]), 'gap-iab://%s')})()", callbackContext.getCallbackId());
             }
             injectDeferredObject(args.getString(0), jsWrapper);
         }