diff --git a/contrib/tcp_wrappers/hosts_access.c b/contrib/tcp_wrappers/hosts_access.c
--- a/contrib/tcp_wrappers/hosts_access.c
+++ b/contrib/tcp_wrappers/hosts_access.c
@@ -315,7 +315,8 @@
 	return (masked_match(tok, mask, eval_hostaddr(host)));
     } else {					/* anything else */
 	return (string_match(tok, eval_hostaddr(host))
-	    || (NOT_INADDR(tok) && string_match(tok, eval_hostname(host))));
+	    || (NOT_INADDR(tok) && NOT_INADDR6(tok)
+	     && string_match(tok, eval_hostname(host))));
     }
 }
 
diff --git a/contrib/tcp_wrappers/tcpd.h b/contrib/tcp_wrappers/tcpd.h
--- a/contrib/tcp_wrappers/tcpd.h
+++ b/contrib/tcp_wrappers/tcpd.h
@@ -70,6 +70,7 @@
 #define	HOSTNAME_KNOWN(s) (STR_NE((s),unknown) && STR_NE((s),paranoid))
 
 #define	NOT_INADDR(s) (s[strspn(s,"01234567890./")] != 0)
+#define	NOT_INADDR6(s) (strchr(s, ':') == NULL)
 
 /* Global functions. */