diff --git a/preprocess.c b/preprocess.c
index e0d32817ad36eaa1e4dd8c77cce76da1096b733c..962ad3bfde41e1554b8de41d1c2bb9888012e278 100644
--- a/preprocess.c
+++ b/preprocess.c
@@ -996,7 +996,6 @@ void init_macros(void) {
   define_macro("__STDC_HOSTED__", "1");
   define_macro("__STDC_NO_ATOMICS__", "1");
   define_macro("__STDC_NO_COMPLEX__", "1");
-  define_macro("__STDC_NO_VLA__", "1");
   define_macro("__STDC_UTF_16__", "1");
   define_macro("__STDC_UTF_32__", "1");
   define_macro("__STDC_VERSION__", "201112L");