diff --git a/pyproject.toml b/pyproject.toml
index da4f3376575e6606cc5e3b107dbc6f20a3d56905..cb730875b8430d0b20cd8a9abde01725ed57aad7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ packages = [
     { include = "aleksis" }
 ]
 readme = "README.rst"
-include = ["CHANGELOG.rst", "LICENCE.rst", "aleksis/**/locale/*.mo"]
+include = ["CHANGELOG.rst", "LICENCE.rst", "aleksis/**/*.mo"]
 
 description = "AlekSIS (School Information System) — App Χρόνος (digital timetables)"
 authors = [
diff --git a/tox.ini b/tox.ini
index f09d243fd2ddcd42c0eae1a6c298c08eb9557a13..2aed3362cf7e62c15839c37ec5fb191dcd1a2f4d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,6 +35,7 @@ commands =
 
 [testenv:build]
 commands_pre =
+    poetry install
     poetry run sh -c "cd aleksis; aleksis-admin compilemessages"
 commands = poetry build