diff --git a/library/sds_thread/shutdown.nim b/library/sds_thread/shutdown.nim
index e2dd202..468bf53 100644
--- a/library/sds_thread/shutdown.nim
+++ b/library/sds_thread/shutdown.nim
@@ -47,4 +47,5 @@ proc shutdown*(): Result[void, string] {.raises: [].} =
   ## be used again.
 
   let disp = getThreadDispatcher()
+  ? closeDispatcher(disp)
   return ok()