diff --git a/lib/libfetch/fetch.c b/lib/libfetch/fetch.c
--- a/lib/libfetch/fetch.c
+++ b/lib/libfetch/fetch.c
@@ -399,7 +399,7 @@
 
 	/* hostname */
 	if (*p == '[') {
-		q = p + 1 + strspn(p + 1, ":0123456789ABCDEFabcdef");
+		q = p + 1 + strspn(p + 1, ":0123456789ABCDEFabcdef.");
 		if (*q++ != ']')
 			goto ouch;
 	} else {