diff --git a/examples/sample.source.PKIX1/Makefile b/examples/sample.source.PKIX1/Makefile
index 3fb206e9..9a046468 100644
--- a/examples/sample.source.PKIX1/Makefile
+++ b/examples/sample.source.PKIX1/Makefile
@@ -360,6 +360,7 @@ regenerate-from-asn1-source:
 
 Attribute.c: regenerate.Makefile
 	./regenerate.Makefile
+	@touch Attribute.c
 	make
 
 $(TARGET).o: ../../skeletons/asn-decoder-template.c