diff --git a/app/src/main/java/com/dm/bomber/ui/MainActivity.java b/app/src/main/java/com/dm/bomber/ui/MainActivity.java
index e5d7b58..c761af9 100644
--- a/app/src/main/java/com/dm/bomber/ui/MainActivity.java
+++ b/app/src/main/java/com/dm/bomber/ui/MainActivity.java
@@ -141,7 +141,7 @@ public void onClick(View view) {
 
     @Override
     public void onWindowFocusChanged(boolean hasFocus) {
-        if (attackManager.hasAttack() && binding.phoneNumber.getText().toString().isEmpty())
+        if (attackManager.hasAttack() || !binding.phoneNumber.getText().toString().isEmpty())
             return;
 
         ClipboardManager clipboard = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);