diff --git a/lib/core/annotation_src.dart b/lib/core/annotation_src.dart
index e22884baf..850c0c342 100644
--- a/lib/core/annotation_src.dart
+++ b/lib/core/annotation_src.dart
@@ -323,7 +323,7 @@ class Component extends Directive {
   /**
    * If set to true, this component will always use shadow DOM.
    * If set to false, this component will never use shadow DOM.
-   * If unset, the compiler's default construction strategy will be used
+   * If unset, the compiler's default construction strategy will be used.
    */
   final bool useShadowDom;