diff --git a/tools/git-if-needed/pyproject.toml b/tools/git-if-needed/pyproject.toml
index a259e91..a0d040d 100644
--- a/tools/git-if-needed/pyproject.toml
+++ b/tools/git-if-needed/pyproject.toml
@@ -21,7 +21,7 @@
 
 [tool.setuptools]
 zip-safe = true
-package-dir = {"" = "python"}
+package-dir = {"" = "python/src"}
 packages = ["gifn_apply"]
 
 [tool.mypy]