diff --git a/lib/csv-diff-report/html.rb b/lib/csv-diff-report/html.rb
index c889f7c..3cdbe7d 100644
--- a/lib/csv-diff-report/html.rb
+++ b/lib/csv-diff-report/html.rb
@@ -85,7 +85,7 @@ def html_summary(body, item_lbl='Files')
             body << '</tbody>'
             body << '</table>'
             body << '<br>'
-            body << "<h3>#{item_lbl)</h3>"
+            body << "<h3>#{item_lbl}</h3>"
             body << '<table>'
             body << '<thead>'
             body << "<tr><th rowspan=2>File</th><th colspan=2 class='center'>Lines</th><th colspan=4 class='center'>Diffs</th></tr>"