diff --git a/gradlew b/gradlew
old mode 100644
new mode 100755
diff --git a/sample/src/main/java/com/nex3z/notificationbadge/sample/MainActivity.java b/sample/src/main/java/com/nex3z/notificationbadge/sample/MainActivity.java
index 8b96db9..c8ca35b 100644
--- a/sample/src/main/java/com/nex3z/notificationbadge/sample/MainActivity.java
+++ b/sample/src/main/java/com/nex3z/notificationbadge/sample/MainActivity.java
@@ -9,7 +9,7 @@
 
 public class MainActivity extends AppCompatActivity {
 
-    NotificationBadge mBadge;
+    private NotificationBadge mBadge;
     private int mCount = 0;
 
     @Override
@@ -37,7 +37,7 @@ public void onClick(View view) {
         });
 
         Button clear = (Button) findViewById(R.id.clear);
-        clear .setOnClickListener(new View.OnClickListener() {
+        clear.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
                 mCount = 0;