diff --git a/lib/libproc/proc_regs.c b/lib/libproc/proc_regs.c
index 157d355b53f..97619afa77e 100644
--- a/lib/libproc/proc_regs.c
+++ b/lib/libproc/proc_regs.c
@@ -33,7 +33,6 @@
 __FBSDID("$FreeBSD$");
 
 #include <sys/types.h>
-#define	_WANT_MIPS_REGNUM
 #include <sys/ptrace.h>
 
 #include <err.h>