diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f77a17d..51408b6 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 # See https://pre-commit.com for more information
 # See https://pre-commit.com/hooks.html for more hooks
-exclude: '(data/|documentation/|portprotonqt/locales/|dev-scripts/|\.venv/|venv/|.*\.svg$)'
+exclude: '(data/|documentation/|portprotonqt/locales/|portprotonqt/custom_data/|dev-scripts/|\.venv/|venv/|.*\.svg$)'
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v5.0.0
diff --git a/pyproject.toml b/pyproject.toml
index 3b65dbb..d399f0c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dependencies = [
 portprotonqt = "portprotonqt.app:main"
 
 [tool.setuptools.package-data]
-"portprotonqt" = ["themes/**/*", "locales/**/*", "custom_data/**/*"]
+"portprotonqt" = ["themes/**/*", "locales/**/*"]
 
 [tool.setuptools.packages.find]
 exclude = ["build-aux", "dev-scripts", "documentation", "data"]