diff --git a/src/OSSupport/CMakeLists.txt b/src/OSSupport/CMakeLists.txt
index 8eeff9d9b..497cd0ba3 100644
--- a/src/OSSupport/CMakeLists.txt
+++ b/src/OSSupport/CMakeLists.txt
@@ -8,3 +8,7 @@ file(GLOB SOURCE
 )
 
 add_library(OSSupport ${SOURCE})
+
+if(UNIX)
+	target_link_libraries(OSSupport pthread)
+endif()