diff --git a/dlls/kernel32/tests/thread.c b/dlls/kernel32/tests/thread.c
index 19726af..e2300d0 100644
--- a/dlls/kernel32/tests/thread.c
+++ b/dlls/kernel32/tests/thread.c
@@ -973,6 +973,9 @@ static void test_SetThreadContext(void)
         "wrong error %u\n", GetLastError() );

     CloseHandle( thread );
+
+    /* make sure internal cleanup of the thread finished */
+    Sleep(200);
 }

 #endif  /* __i386__ */