diff --git a/python-setproctitle.spec b/python-setproctitle.spec
index 45bfdd4..ca6597c 100644
--- a/python-setproctitle.spec
+++ b/python-setproctitle.spec
@@ -7,7 +7,7 @@
 
 Name:           python-setproctitle
 Version:        1.1.10
-Release:        10%{?dist}
+Release:        11%{?dist}
 Summary:        Python module to customize a process title
 
 License:        BSD
@@ -90,7 +90,7 @@ sys.version_info[0], sys.version_info[1]))")
 # looks like tests are not 2to3'ed by setup.py
 2to3 -w --no-diffs tests
 gcc `pkg-config --cflags --libs python3` -o tests/pyrun3 tests/pyrun.c
-PYTHONPATH=$BUILD_DIR:$PYTHONPATH ROOT_PATH=$(pwd) LANG=en_US.utf8 \
+PYTHONPATH=$BUILD_DIR:$PYTHONPATH ROOT_PATH=$(pwd) \
                                   %{__python3} tests/setproctitle_test.py -v || :
 popd
 %endif
@@ -112,6 +112,10 @@ popd
 %endif
 
 %changelog
+* Sun Nov 18 2018 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 1.1.10-11
+- Drop explicit locale setting
+  See https://fedoraproject.org/wiki/Changes/Remove_glibc-langpacks-all_from_buildroot
+
 * Sat Jul 14 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.1.10-10
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild