diff --git a/client/TracyProfiler.cpp b/client/TracyProfiler.cpp
index 5740d4e0..aa342a5f 100644
--- a/client/TracyProfiler.cpp
+++ b/client/TracyProfiler.cpp
@@ -56,7 +56,9 @@
 #if defined _MSC_VER || defined __CYGWIN__
 #  include <lmcons.h>
 extern "C" typedef LONG (WINAPI *t_RtlGetVersion)( PRTL_OSVERSIONINFOW );
-#  define TRACY_USE_INIT_ONCE
+#  if _WIN32_WINNT >= _WIN32_WINNT_VISTA
+#    define TRACY_USE_INIT_ONCE
+#  endif
 #else
 #  include <unistd.h>
 #  include <limits.h>