diff --git a/editor.html b/editor.html
index 35166209..6e29467c 100644
--- a/editor.html
+++ b/editor.html
@@ -232,11 +232,11 @@ using namespace std;
 
 int main ()
 {
-  int a, b=3; /* foobar */
-  a = b;
-  a+=2; // equivalent to a=a+2
-  cout << a;
-  return 0;
+    int a, b=3; /* foobar */
+    a = b;
+    a+=2; // equivalent to a=a+2
+    cout << a;
+    return 0;
 }
 </script>