diff --git a/rubygem-rspec-mocks.spec b/rubygem-rspec-mocks.spec
index c1b5bf5..2ea98c5 100644
--- a/rubygem-rspec-mocks.spec
+++ b/rubygem-rspec-mocks.spec
@@ -14,13 +14,13 @@
 Summary:	RSpec's 'test double' framework (mocks and stubs)
 Name:		rubygem-%{gem_name}
 Version:	%{majorver}
-Release:	%{?preminorver:0.}%{fedorarel}%{?preminorver:%{rpmminorver}}%{?dist}.1
+Release:	%{?preminorver:0.}%{fedorarel}%{?preminorver:%{rpmminorver}}%{?dist}.2
 
 Group:		Development/Languages
 License:	MIT
 URL:		http://github.com/rspec/rspec-mocks
 Source0:	https://rubygems.org/gems/%{gem_name}-%{fullver}.gem
-# %%{SOURCE2} %%{name} %%{version} 
+# %%{SOURCE2} %%{name} %%{version}
 Source1:	rubygem-%{gem_name}-%{version}-full.tar.gz
 Source2:	rspec-related-create-full-tarball.sh
 # https://github.com/rspec/rspec-mocks/pull/1196
@@ -72,7 +72,7 @@ rm -f %{buildroot}%{gem_instdir}/{.document,.yardopts}
 %if 0%{?need_bootstrap_set} < 1
 %check
 # library_wide_checks.rb needs UTF-8
-LANG=en_US.utf8
+LANG=C.UTF-8
 ruby -rrubygems -Ilib/ -S rspec spec/
 %endif
 
@@ -92,6 +92,10 @@ ruby -rrubygems -Ilib/ -S rspec spec/
 %{gem_docdir}
 
 %changelog
+* Sun Nov 18 2018 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 3.7.0-3.2
+- Use C.UTF-8 locale
+  See https://fedoraproject.org/wiki/Changes/Remove_glibc-langpacks-all_from_buildroot
+
 * Sat Jul 14 2018 Fedora Release Engineering <releng@fedoraproject.org> - 3.7.0-3.1
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild