diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 3108c30..ed725c6 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -7,6 +7,7 @@ repos:
     rev: v2.4.1
     hooks:
       - id: prettier
+        exclude: ^copier.yml$
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.0.1
     hooks:
diff --git a/copier.yml b/copier.yml
index 5f191f7..38c0901 100644
--- a/copier.yml
+++ b/copier.yml
@@ -12,8 +12,7 @@ _envops:
 
 _tasks:
   # HACK: https://github.com/copier-org/copier/issues/461
-  - if [ {{ ci }} == "Github" ]; then rm -f -- .travis.yml; elif [ {{ ci }} == "Travis"
-    ]; then rm -f -- .t2d.yml; fi
+  - rm -f {% if ci != "Travis" %}.travis.yml{% endif %} {% if ci != "GitHub" %}.t2d.yml{% endif %}
 
 odoo_version:
   type: float