diff --git a/src/c-stdaux.h b/src/c-stdaux.h
index f87362bec..80db7f9a4 100644
--- a/src/c-stdaux.h
+++ b/src/c-stdaux.h
@@ -57,7 +57,6 @@ extern "C" {
 #include <limits.h>
 #include <stdalign.h>
 #include <stdarg.h>
-#include <stdatomic.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdio.h>