From 7fd284a7057087485e2a541b9e6c13fe8ddfb2b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mike=20F=C3=A4hrmann?= <mike_faehrmann@web.de>
Date: Mon, 16 Nov 2015 17:40:05 +0100
Subject: [PATCH] always provide lowercase fileextensions

---
 gallery_dl/text.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gallery_dl/text.py b/gallery_dl/text.py
index 44c6a8ab..b1c42719 100644
--- a/gallery_dl/text.py
+++ b/gallery_dl/text.py
@@ -34,7 +34,7 @@ def nameext_from_url(url, data=None):
         data = {}
     data["filename"] = unquote(filename_from_url(url))
     data["name"], ext = os.path.splitext(data["filename"])
-    data["extension"] = ext[1:]
+    data["extension"] = ext[1:].lower()
     return data
 
 def clean_path_windows(path):