diff --git a/libc/netbsd/gethnamaddr.c b/libc/netbsd/gethnamaddr.c
index 728801f..9a9f6e2 100644
--- a/libc/netbsd/gethnamaddr.c
+++ b/libc/netbsd/gethnamaddr.c
@@ -638,7 +638,7 @@
 }
 
 struct hostent *
-gethostbyaddr(const char *addr,	/* XXX should have been def'd as u_char! */
+gethostbyaddr(const void *addr,
     socklen_t len, int af)
 {
 	const u_char *uaddr = (const u_char *)addr;