diff --git a/.pre-commit-hooks.yaml b/.pre-commit-hooks.yaml
index d846a013..ffcce523 100644
--- a/.pre-commit-hooks.yaml
+++ b/.pre-commit-hooks.yaml
@@ -3,7 +3,7 @@
   description: Runs `cffconvert --validate`.
   entry: cffconvert --validate
   language: python
-  files: ^CITATION.cff$
+  files: ^CITATION\.cff$
   pass_filenames: false
   types: [text]
   require_serial: true