diff --git a/.gitlint b/.gitlint
index 9ce883f..a1bb93d 100644
--- a/.gitlint
+++ b/.gitlint
@@ -3,7 +3,7 @@ fail-without-commits=true
 contrib=CC1
 
 [title-match-regex]
-regex=^\[\#[0-9]+\]\s
+regex=^\[\#[0-9Xx]+\]\s
 
 [ignore-by-title]
 regex=^Release(.*)