diff --git a/skeletons/tests/check-XER.c b/skeletons/tests/check-XER.c
index 6e2f1ce..82cd0e4 100644
--- a/skeletons/tests/check-XER.c
+++ b/skeletons/tests/check-XER.c
@@ -1,7 +1,9 @@
-#include <xer_decoder.c>
-#include <xer_support.c>
+#include <stdio.h>
 #include <assert.h>
 
+#include <asn_internal.h>
+#include <xer_decoder.h>
+
 static void
 check(char *tag, char *name, xer_check_tag_e value) {
 	xer_check_tag_e xct;