diff --git a/kern/chan.c b/kern/chan.c
index 79d2762..7105f3a 100644
--- a/kern/chan.c
+++ b/kern/chan.c
@@ -1010,7 +1010,7 @@ parsename(char *name, Elemlist *e)
 }
 
 void*
-memrchr(void *va, int c, long n)
+mymemrchr(void *va, int c, long n)
 {
 	uchar *a, *e;
 
@@ -1150,7 +1150,7 @@ namec(char *aname, int amode, int omode, ulong perm)
 		strcpy(tmperrbuf, up->errstr);
 	NameError:
 		len = prefix+e.off[npath];
-		if(len < ERRMAX/3 || (name=memrchr(aname, '/', len))==nil || name==aname)
+		if(len < ERRMAX/3 || (name=mymemrchr(aname, '/', len))==nil || name==aname)
 			snprint(up->genbuf, sizeof up->genbuf, "%.*s", len, aname);
 		else
 			snprint(up->genbuf, sizeof up->genbuf, "...%.*s", (int)(len-(name-aname)), name);