diff --git a/progit/hooks/files/progit_hook.py b/progit/hooks/files/progit_hook.py
index a58daea..21b2824 100644
--- a/progit/hooks/files/progit_hook.py
+++ b/progit/hooks/files/progit_hook.py
@@ -33,7 +33,7 @@ RELATES = [
     re.compile('.*\s+relate[sd]?:?\s?#(\d+)', re.I),
     re.compile(
         'relate[sd]?:?\s?(?:to)?\s?https?://.*/(\w+)/issue/(\d+)', re.I),
-    re.compile('.*\s+relate[sd]?:?\s?https?://.*/(\w+)/issue/(\d+)', re.I),
+    re.compile('.*\s+relate[sd]?:?\s?(?:to)?\s?https?://.*/(\w+)/issue/(\d+)', re.I),
 ]