diff --git a/dispatch/source.h b/dispatch/source.h
index 597d23a4f..b54862ea8 100644
--- a/dispatch/source.h
+++ b/dispatch/source.h
@@ -54,7 +54,7 @@ DISPATCH_ASSUME_NONNULL_BEGIN
  * Dispatch sources are used to automatically submit event handler blocks to
  * dispatch queues in response to external events.
  */
-DISPATCH_SOURCE_DECL(dispatch_source);
+DISPATCH_SOURCE_DECL(dispatch_source)
 
 __BEGIN_DECLS