diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..1b6b200
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,42 @@
+[build-system]
+build-backend = "flit_core.buildapi"
+requires = ["flit_core >=3.8.0,<4"]
+
+[project]
+name = "rougail.user_output_formatter"
+version = "0.1.0a0"
+authors = [{name = "Emmanuel Garette", email = "gnunux@gnunux.info"}]
+readme = "README.md"
+description = "Rougail output formatter"
+requires-python = ">=3.8"
+license = {file = "LICENSE"}
+classifiers = [
+    "License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
+    "Programming Language :: Python :: 3",
+    "Operating System :: OS Independent",
+    "Natural Language :: English",
+    "Natural Language :: French",
+
+]
+dependencies = [
+    "rougail >= 1.1,<2",
+]
+
+[project.urls]
+Home = "https://forge.cloud.silique.fr/stove/rougail-output-formatter"
+
+[tool.commitizen]
+name = "cz_conventional_commits"
+tag_format = "$version"
+version_scheme = "pep440"
+version_provider = "pep621"
+update_changelog_on_bump = true
+changelog_merge_prerelease = true
diff --git a/src/rougail/output_formatter/config.py b/src/rougail/output_formatter/config.py
index 725017d..2bf57be 100644
--- a/src/rougail/output_formatter/config.py
+++ b/src/rougail/output_formatter/config.py
@@ -29,14 +29,14 @@ load_unexist_redefine:
   type: boolean
   default:
     jinja: >-
-      {% if step.output == 'formatter' %}
+      {% if step.output is not propertyerror and step.output == 'formatter' %}
       true
       {% else %}
       false
       {% endif %}
   hidden:
     jinja: >-
-      {% if step.output == 'formatter' %}
+      {% if step.output is not propertyerror and step.output == 'formatter' %}
       load_unexist_redefine is always true with 'formatter' output
       {% endif %}
 """