diff --git a/testdata/projects/poetry/pyproject.toml b/testdata/projects/poetry/pyproject.toml
index c878acfc1..cc42d0070 100755
--- a/testdata/projects/poetry/pyproject.toml
+++ b/testdata/projects/poetry/pyproject.toml
@@ -3,6 +3,7 @@ name = "poetry-project"
 version = "0.1.0"
 description = ""
 authors = ["Your Name <you@example.com>"]
+package-mode = false
 
 [tool.poetry.dependencies]
 python = "^3.10"