1 files changed, 3 insertions, 1 deletions

diff --git a/type/Default.class.php b/type/Default.class.php
index a56e00c..e4d3dec 100644
--- a/type/Default.class.php
+++ b/type/Default.class.php
@@ -105,7 +105,9 @@ class Type_Default {
 
                 foreach($files as $filename) {
                         $basename=basename($filename,'.rrd');
-                        $instance=substr($basename,strpos($basename,'-')+1);
+                        $instance = strpos($basename,'-')
+                                ? substr($basename, strpos($basename,'-') + 1)
+                                : $basename;
 
                         $this->tinstances[] = $instance;
                         $this->files[$instance] = $filename;