1 files changed, 3 insertions, 2 deletions
diff --git a/munin-plugin b/munin-plugin
index a0899db..8c18a87 100755
--- a/munin-plugin
+++ b/munin-plugin
@@ -50,8 +50,9 @@ if (!$ARGV[0]) {
 
 sub label2key {
     my $label = shift;
-    $label =~ s/[^a-zA-Z0-9_]+/_/g;
-    $label =~ s/^_+//;
+    # Removing illegal characters.  Apparently using '_' as a
+    # replacement character break graph generation with version 1.2.5.
+    $label =~ s/[^a-zA-Z0-9]+//g;
     return $label;
 }