diff --git a/ipython.spec b/ipython.spec
index 0df4731..de4869d 100644
--- a/ipython.spec
+++ b/ipython.spec
@@ -189,7 +189,6 @@ mkdir -p run_tests
 pushd run_tests
 PYTHONPATH=%{buildroot}%{python3_sitelib} \
     PATH="%{buildroot}%{_bindir}:$PATH" \
-    LC_ALL=en_US.UTF-8 \
     %{buildroot}%{_bindir}/iptest3 %{test_groups}
 popd