1 files changed, 1 insertions, 1 deletions

diff --git a/type/Default.class.php b/type/Default.class.php
index e1b8835..57b505f 100644
--- a/type/Default.class.php
+++ b/type/Default.class.php
@@ -333,7 +333,7 @@ class Type_Default {
 
                 $c = 0;
                 foreach ($sources as $source) {
-                        $dsname = $this->ds_names[$source] != '' ? $this->ds_names[$source] : $source;
+                        $dsname = empty($this->ds_names[$source]) ? $source : $this->ds_names[$source];
                         $color = is_array($this->colors) ? (isset($this->colors[$source])?$this->colors[$source]:$this->colors[$c++]): $this->colors;
                         $rrdgraph[] = sprintf('"LINE1:avg_%s#%s:%s"', crc32hex($source), $this->validate_color($color), $this->rrd_escape($dsname));
                         $rrdgraph[] = sprintf('"GPRINT:min_%s:MIN:%s Min,"', crc32hex($source), $this->rrd_format);