diff --git a/.github/actions/spelling/patterns.txt b/.github/actions/spelling/patterns.txt
index 9497a00e..5c595e9b 100644
--- a/.github/actions/spelling/patterns.txt
+++ b/.github/actions/spelling/patterns.txt
@@ -4,4 +4,4 @@ https?:\S*
 # Any CLI args (-xzf -aef)
 \ -\w+\b
 # Hex colors (dummy group to not be treated as comment)
-(#)([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})
+(?:#)([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})