diff --git a/include/tlibc/std.h b/include/tlibc/std.h
index f58fc33..44cd111 100755
--- a/include/tlibc/std.h
+++ b/include/tlibc/std.h
@@ -84,6 +84,16 @@ typedef const char* cstr;
 #define ATTRIBUTE_CHECK_FORMAT_PRINTF(FMT_ARG_INDEX, VARIADIC_ARGS_INDEX) \
     __attribute__((__format__(__printf__, FMT_ARG_INDEX, VARIADIC_ARGS_INDEX)))
 
+// taken from libtoml
+#if defined(__cplusplus) && __cplusplus >= 201103L
+    #define ATTRIBUTE_THREAD_LOCAL thread_local
+#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
+    #define ATTRIBUTE_THREAD_LOCAL _Thread_local
+#elif defined(_MSC_VER)
+    #define ATTRIBUTE_THREAD_LOCAL __declspec(thread)
+#else
+    #define ATTRIBUTE_THREAD_LOCAL __thread
+#endif
 
 #if __cplusplus
 }