diff --git a/example/android/AddIntDef.php b/example/android/AddIntDef.php
index e6b2bdfc9..d4ae4a65b 100644
--- a/example/android/AddIntDef.php
+++ b/example/android/AddIntDef.php
@@ -12,7 +12,7 @@
                                                                 'import androidx.annotation.Nullable;'.PHP_EOL.
                                                                 PHP_EOL.
                                                                 'import java.lang.annotation.Retention;'.PHP_EOL.
-                                                                'import java.lang.annotation.RetentionPolicy;', $file);
+                                                                'import java.lang.annotation.RetentionPolicy;'.PHP_EOL, $file);
 
     preg_match_all('/public static class ([A-Za-z0-9]+) extends ([A-Za-z0-9]+)/', $file, $matches, PREG_SET_ORDER);
     $children = [];
@@ -21,13 +21,20 @@
             continue;
         }
 
-        $children[$val[2]][] = PHP_EOL.'            '.$val[1].'.CONSTRUCTOR';
+        $children[$val[2]][] = '            '.$val[1].'.CONSTRUCTOR';
     }
 
     $file = preg_replace_callback('/public abstract static class ([A-Za-z0-9]+)(<R extends Object>)? extends Object [{]/',
         function ($val) use ($children) {
-            return $val[0].PHP_EOL.'        @Retention(RetentionPolicy.SOURCE)'.PHP_EOL.'        @IntDef({'.implode(',', $children[$val[1]]).<<<'EOL'
+            $values = implode(','.PHP_EOL, $children[$val[1]]);
+            return $val[0].<<<EOL
 
+        /**
+         * Describes possible values returned by getConstructor().
+         */
+        @Retention(RetentionPolicy.SOURCE)
+        @IntDef({
+$values
         })
         public @interface Constructors {}