diff --git a/arch/s390/dfltcc_detail.h b/arch/s390/dfltcc_detail.h
index 37e23bc122..e1d625b84a 100644
--- a/arch/s390/dfltcc_detail.h
+++ b/arch/s390/dfltcc_detail.h
@@ -1,7 +1,5 @@
-#include <stddef.h>
-#include <stdint.h>
+#include "../../zbuild.h"
 #include <stdio.h>
-#include <string.h>
 
 #ifdef HAVE_SYS_SDT_H
 #include <sys/sdt.h>