diff --git a/sys/arch/pica/include/regdef.h b/sys/arch/pica/include/regdef.h
deleted file mode 100644
index ec49fd15ee79..000000000000
--- a/sys/arch/pica/include/regdef.h
+++ /dev/null
@@ -1,3 +0,0 @@
-/*	$NetBSD: regdef.h,v 1.4 1999/03/30 14:21:23 soda Exp $	*/
-
-#include <mips/regdef.h>