diff --git a/compiletimeassert.h b/compiletimeassert.h
index f9cfb49..2b71aa8 100644
--- a/compiletimeassert.h
+++ b/compiletimeassert.h
@@ -1,8 +1,12 @@
 
-#if __STDC_VERSION__ >= 201112L
+#if __STDC_VERSION__ >= 201710L
 
 #define compiletimeassert(cond) _Static_assert(cond)
 
+#elif __STDC_VERSION__ >= 201112L
+
+#define compiletimeassert(cond) _Static_assert(cond,"")
+
 #else
 
 #define __X(x, y) x ## y