diff --git a/check_geom b/check_geom
index e7c776c..d8c1402 100755
--- a/check_geom
+++ b/check_geom
@@ -127,6 +127,8 @@ if ($state ne "OK") {
 }
 
 #goats away!
-$msg = sprintf "%s/%s %s { %s }\n", $class, $volume, $status, $compo;
+my $perfdata = sprintf "%s=%d;;;0;", "geom_" . $class, $found;
+$msg = sprintf "%s/%s %s { %s }|%s\n", $class, $volume, $status, $compo,
+    $perfdata;
 print $state, " ", $msg;
 exit ($ERRORS{$state});