diff --git a/pyproject.toml b/pyproject.toml
index d8a1e7b0e1799ce2227b6829f38e2c150675f520..4382be8c7afd1b46c59916f6a8b068eede5ce0c7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ packages = [
     { include = "aleksis" }
 ]
 readme = "README.rst"
-include = ["CHANGELOG.rst", "LICENCE.rst"]
+include = ["CHANGELOG.rst", "LICENCE.rst", "aleksis/**/locale/*.mo"]
 
 description = "AlekSIS (School Information System) — App Χρόνος (digital timetables)"
 authors = ["Dominik George <dominik.george@teckids.org>", "Julian Leucker <leuckeju@katharineum.de>", "Frank Poetzsch-Heffter <p-h@katharineum.de>", "Tom Teichler <tom.teichler@teckids.org>", "Jonathan Weth <wethjo@katharineum.de>", "Hangzhi Yu <yuha@katharineum.de>"]