diff --git a/tests/auto/corelib/thread/qsemaphore/BLACKLIST b/tests/auto/corelib/thread/qsemaphore/BLACKLIST
index eb83b03556..0786f50417 100644
--- a/tests/auto/corelib/thread/qsemaphore/BLACKLIST
+++ b/tests/auto/corelib/thread/qsemaphore/BLACKLIST
@@ -1,6 +1,8 @@
 [tryAcquireWithTimeout:0.2s]
 windows
 osx-10.12
+osx-10.13
 [tryAcquireWithTimeout:2s]
 windows
 osx-10.12
+osx-10.13