diff --git a/spec/fixtures/parallel_diff_result.yml b/spec/fixtures/parallel_diff_result.yml
index 0fb9bf6c5d8..a326b651aad 100644
--- a/spec/fixtures/parallel_diff_result.yml
+++ b/spec/fixtures/parallel_diff_result.yml
@@ -55,7 +55,7 @@
     :type: new
     :number: 9
     :text: |
-      +<span id="LC9" class="line">      <span class="k">raise</span> <span class="no"><span class='idiff'>RuntimeError</span></span><span class="p"><span class='idiff'>,</span></span> <span class="s2">&quot;System commands must be given as an array of strings&quot;</span></span>
+      +<span id="LC9" class="line">      <span class="k">raise</span> <span class="no"><span class='idiff'>RuntimeError</span></span><span class="p"><span class='idiff'>,</span></span><span class='idiff'> </span><span class="s2">&quot;System commands must be given as an array of strings&quot;</span></span>
     :line_code: 2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9
 - :left:
     :type:
diff --git a/spec/lib/gitlab/diff/highlight_spec.rb b/spec/lib/gitlab/diff/highlight_spec.rb
index b54e95483d3..b84a57f357a 100644
--- a/spec/lib/gitlab/diff/highlight_spec.rb
+++ b/spec/lib/gitlab/diff/highlight_spec.rb
@@ -33,7 +33,7 @@ describe Gitlab::Diff::Highlight, lib: true do
     end
 
     it 'should highlight added lines' do
-      code = %Q{+<span id="LC9" class="line">      <span class="k">raise</span> <span class="no"><span class='idiff'>RuntimeError</span></span><span class="p"><span class='idiff'>,</span></span> <span class="s2">&quot;System commands must be given as an array of strings&quot;</span></span>\n}
+      code = %Q{+<span id="LC9" class="line">      <span class="k">raise</span> <span class="no"><span class='idiff'>RuntimeError</span></span><span class="p"><span class='idiff'>,</span></span><span class='idiff'> </span><span class="s2">&quot;System commands must be given as an array of strings&quot;</span></span>\n}
 
       expect(diff_lines[5].text).to eq(code)
     end
diff --git a/spec/lib/gitlab/diff/parallel_diff_spec.rb b/spec/lib/gitlab/diff/parallel_diff_spec.rb
index 852218b4e62..1c5bbc47120 100644
--- a/spec/lib/gitlab/diff/parallel_diff_spec.rb
+++ b/spec/lib/gitlab/diff/parallel_diff_spec.rb
@@ -2,7 +2,7 @@ require 'spec_helper'
 
 describe Gitlab::Diff::ParallelDiff, lib: true do
   include RepoHelpers
-  
+
   let(:project) { create(:project) }
   let(:repository) { project.repository }
   let(:commit) { project.commit(sample_commit.id) }