diff --git a/headers/compatibility/gnu/sched.h b/headers/compatibility/gnu/sched.h
index 3107d820e8..bc24a99976 100644
--- a/headers/compatibility/gnu/sched.h
+++ b/headers/compatibility/gnu/sched.h
@@ -7,6 +7,7 @@
 
 
 #include_next <sched.h>
+#include <features.h>
 
 #include <stdint.h>
 #include <sys/types.h>