1 files changed, 1 insertions, 0 deletions

diff --git a/type/GenericIO.class.php b/type/GenericIO.class.php
index bbbbea7..42314fd 100644
--- a/type/GenericIO.class.php
+++ b/type/GenericIO.class.php
@@ -9,6 +9,7 @@ class Type_GenericIO extends Type_Default {
 
                 $sources = $this->rrd_get_sources();
 
+                $raw = null;
                 if ($this->scale)
                         $raw = '_raw';
                 $i=0;