diff --git a/compiler-rt/test/tsan/signal_recursive.cpp b/compiler-rt/test/tsan/signal_recursive.cpp
index fca8757d2a95..189c35a299dc 100644
--- a/compiler-rt/test/tsan/signal_recursive.cpp
+++ b/compiler-rt/test/tsan/signal_recursive.cpp
@@ -3,6 +3,8 @@
 // Test case for recursive signal handlers, adopted from:
 // https://github.com/google/sanitizers/issues/478
 
+// UNSUPPORTED: darwin
+
 #include "test.h"
 #include <semaphore.h>
 #include <signal.h>