diff -Naur a/mmv.c b/mmv.c
--- a/mmv.c	2020-07-01 18:55:50.961457418 -0400
+++ b/mmv.c	2020-07-01 19:00:17.724426386 -0400
@@ -193,10 +193,7 @@
 #ifdef IS_SYSV
 
 /* for System V and Version 7*/
-struct utimbuf {
-	time_t actime;
-	time_t modtime;
-};
+#include <utime.h>
 #define utimes(f, t) utime((f), &(t))
 
 #ifndef HAS_RENAME