diff --git a/docs/apis/core/dml/index.md b/docs/apis/core/dml/index.md
index 3a571dee54..87af8e6dba 100644
--- a/docs/apis/core/dml/index.md
+++ b/docs/apis/core/dml/index.md
@@ -636,7 +636,7 @@ try {
      // Assuming the both inserts work, we get to the following line.
      $transaction->allow_commit();
 
-} catch(Exception $e) {
+} catch (Exception $e) {
      $transaction->rollback($e);
 }
 ```