diff --git a/src/util/dynamic_arg.hpp b/src/util/dynamic_arg.hpp
index 1c0377a8..7c054aa6 100644
--- a/src/util/dynamic_arg.hpp
+++ b/src/util/dynamic_arg.hpp
@@ -23,7 +23,7 @@
 #ifdef _MSC_VER
 #	define THREAD_LOCAL __declspec(thread)
 #	define HAVE_TLS 1
-#elif defined __linux
+#elif defined __GNUC__
 #	define THREAD_LOCAL __thread
 #	define HAVE_TLS 1
 #else