diff --git a/mozilla/webtools/bugzilla/.bzrrev b/mozilla/webtools/bugzilla/.bzrrev
index bec54cf6e35..bcfee908821 100644
--- a/mozilla/webtools/bugzilla/.bzrrev
+++ b/mozilla/webtools/bugzilla/.bzrrev
@@ -1 +1 @@
-7188
\ No newline at end of file
+7189
\ No newline at end of file
diff --git a/mozilla/webtools/bugzilla/collectstats.pl b/mozilla/webtools/bugzilla/collectstats.pl
index 5f9b4eef337..d8987b2b99c 100755
--- a/mozilla/webtools/bugzilla/collectstats.pl
+++ b/mozilla/webtools/bugzilla/collectstats.pl
@@ -201,6 +201,10 @@ sub collect_stats {
           || ThrowCodeError('chart_file_open_fail', {'filename' => $file});
     }
 
+    if (Bugzilla->params->{'utf8'}) {
+        binmode DATA, ':utf8';
+    }
+
     # Now collect current data.
     my @row = (today());
     my $status_sql = q{SELECT COUNT(*) FROM bugs WHERE bug_status = ?};
@@ -258,6 +262,10 @@ sub get_old_data {
     open(DATA, '<', $file)
       || ThrowCodeError('chart_file_open_fail', {'filename' => $file});
 
+    if (Bugzilla->params->{'utf8'}) {
+        binmode DATA, ':utf8';
+    }
+
     my @data;
     my @columns;
     my $recreate = 0;