diff --git a/src/undo.c b/src/undo.c
index ec06f31..db81ba0 100644
--- a/src/undo.c
+++ b/src/undo.c
@@ -2880,11 +2880,8 @@
 	if (time(NULL) - tt < (60L * 60L * 12L))
 	    /* within 12 hours */
 	    (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime);
-	else if (time(NULL) - tt < (60L * 60L * 24L * 180L))
-	    /* within 6 months */
-	    (void)strftime((char *)buf, buflen, "%m/%d %H:%M:%S", curtime);
 	else
-	    /* long ago */
+	    /* longer ago */
 	    (void)strftime((char *)buf, buflen, "%Y/%m/%d %H:%M:%S", curtime);
     }
     else