diff --git a/src/android/jar/src/org/qtproject/qt5/android/QtActivityDelegate.java b/src/android/jar/src/org/qtproject/qt5/android/QtActivityDelegate.java
index a7c5802c43..c8bf7dc534 100644
--- a/src/android/jar/src/org/qtproject/qt5/android/QtActivityDelegate.java
+++ b/src/android/jar/src/org/qtproject/qt5/android/QtActivityDelegate.java
@@ -45,6 +45,7 @@ import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
+import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.res.AssetManager;
@@ -711,12 +712,9 @@ public class QtActivityDelegate
             Bundle extras = m_activity.getIntent().getExtras();
             if (extras != null) {
                 try {
-                    // do NOT remove !!!!
-                    final String dc = "--Added-by-androiddeployqt--/debugger.command";
-                    new BufferedReader(new InputStreamReader(m_activity.getAssets().open(dc))).readLine();
-                    // do NOT remove !!!!
-                    // The previous lines are needed to check if the debug mode is enabled.
-                    // We are not allowed to use extraenvvars or extraappparams in a non debuggable environment.
+                    final boolean isDebuggable = (m_activity.getApplicationInfo().flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0;
+                    if (!isDebuggable)
+                        throw new Exception();
 
                     if (extras.containsKey("extraenvvars")) {
                         try {
@@ -734,6 +732,8 @@ public class QtActivityDelegate
                         }
                     }
                 } catch (Exception e) {
+                    Log.e(QtNative.QtTAG, "Not in debug mode! It is not allowed to use " +
+                                          "extra arguments in non-debug mode.");
                     // This is not an error, so keep it silent
                     // e.printStackTrace();
                 }