diff --git a/libvoikko.spec b/libvoikko.spec
index f5d1262..5322646 100644
--- a/libvoikko.spec
+++ b/libvoikko.spec
@@ -103,7 +103,9 @@ install -pm 0644 python/libvoikko.py $RPM_BUILD_ROOT%{python3_sitelib}/
 
 %files -n python3-libvoikko
 %{python3_sitelib}/%{name}.py*
+%if ! 0%{?flatpak}
 %{python3_sitelib}/__pycache__/*
+%endif
 
 %changelog
 * Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.1.1-6