diff -up openhpi-3.8.0/clients/hpixml/schema.S.me openhpi-3.8.0/clients/hpixml/schema.S
--- openhpi-3.8.0/clients/hpixml/schema.S.me	2018-09-20 13:44:47.258156718 +0200
+++ openhpi-3.8.0/clients/hpixml/schema.S	2018-09-20 13:45:11.606294527 +0200
@@ -13,3 +13,7 @@ _schema_end:
 #if defined(__linux__) && defined(__ELF__)
 .section .note.GNU-stack, "", %progbits
 #endif
+
+#ifdef __CET__
+#include <cet.h>
+#endif