diff --git a/rubygem-diff-lcs.spec b/rubygem-diff-lcs.spec
index bcd4f0d..f0fe09f 100644
--- a/rubygem-diff-lcs.spec
+++ b/rubygem-diff-lcs.spec
@@ -7,7 +7,7 @@
 Summary: Provide a list of changes between two sequenced collections
 Name: rubygem-%{gem_name}
 Version: 1.2.5
-Release: 3%{?dist}
+Release: 4%{?dist}
 Group: Development/Languages
 #lib/diff/lcs.rb is Artistic or Ruby or BSD
 #lib/diff/lcs/*.rb is GPLv2+ or Artistic or Ruby or BSD
@@ -71,7 +71,8 @@ pushd .%{gem_instdir}
 # https://github.com/halostatue/diff-lcs/issues/1
 sed -i '/Diff::LCS.patch(s1, diff_s1_s2).should == s2/ s/^/#/' spec/issues_spec.rb
 
-rspec spec
+# https://github.com/halostatue/diff-lcs/issues/33
+rspec -rdiff/lcs -rdiff/lcs/hunk spec
 popd
 %endif
 
@@ -100,6 +101,9 @@ popd
 
 
 %changelog
+* Fri Aug 28 2015 Josef Stribny <jstribny@redhat.com> - 1.2.5-4
+- Fix FTBFS: change the way the specs are run
+
 * Thu Jun 18 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.5-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild