diff --git a/source/utils/CarlaSemUtils.hpp b/source/utils/CarlaSemUtils.hpp
index 4919260a7..179ed6db7 100644
--- a/source/utils/CarlaSemUtils.hpp
+++ b/source/utils/CarlaSemUtils.hpp
@@ -22,7 +22,7 @@
 
 #include <ctime>
 
-#ifndef CARLA_OS_HAIKU
+#ifdef CARLA_OS_LINUX
 # define CARLA_USE_FUTEXES
 #endif