diff --git a/docs/manual/src/docs/asciidoc/_includes/test.adoc b/docs/manual/src/docs/asciidoc/_includes/test.adoc
index e44df9478c..45857070c2 100644
--- a/docs/manual/src/docs/asciidoc/_includes/test.adoc
+++ b/docs/manual/src/docs/asciidoc/_includes/test.adoc
@@ -219,6 +219,7 @@ For example, we might create an annotation named `@WithMockCustomUser` as shown
 
 [source,java]
 ----
+@Retention(RetentionPolicy.RUNTIME)
 @WithSecurityContext(factory = WithMockCustomUserSecurityContextFactory.class)
 public @interface WithMockCustomUser {