diff --git a/includes/discovery/os/vrp.inc.php b/includes/discovery/os/vrp.inc.php
index a3f9a819a..23bbb4229 100644
--- a/includes/discovery/os/vrp.inc.php
+++ b/includes/discovery/os/vrp.inc.php
@@ -2,9 +2,9 @@
 
 if(!$os) {
 
-  if(strstr($sysDescr, "VRP (R) Software")) { $os = "vrp"; }
-  else if(strstr($sysDescr, "VRP Software Version")) { $os = "vrp"; }
-  else if(strstr($sysDescr, "Software Version VRP")) { $os = "vrp"; }
+  if(stristr($sysDescr, "VRP (R) Software")) { $os = "vrp"; }
+  else if(stristr($sysDescr, "VRP Software Version")) { $os = "vrp"; }
+  else if(stristr($sysDescr, "Software Version VRP")) { $os = "vrp"; }
 
 }