diff --git a/pkg/proc/threads_darwin.go b/pkg/proc/threads_darwin.go
index 38a935a5..bf1e557a 100644
--- a/pkg/proc/threads_darwin.go
+++ b/pkg/proc/threads_darwin.go
@@ -93,7 +93,7 @@ func threadBlocked(t IThread) bool {
 		return false
 	}
 	switch fn.Name {
-	case "runtime.kevent", "runtime.mach_semaphore_wait", "runtime.usleep":
+	case "runtime.kevent", "runtime.mach_semaphore_wait", "runtime.usleep", "runtime.mach_semaphore_timedwait":
 		return true
 	default:
 		return false