diff --git a/lib/Slic3r/Config.pm b/lib/Slic3r/Config.pm
index 50fd29e21..adf83bec2 100644
--- a/lib/Slic3r/Config.pm
+++ b/lib/Slic3r/Config.pm
@@ -7,7 +7,7 @@ use List::Util qw(first);
 
 # cemetery of old config settings
 our @Ignore = qw(duplicate_x duplicate_y multiply_x multiply_y support_material_tool acceleration
-    adjust_overhang_flow);
+    adjust_overhang_flow standby_temperature);
 
 my $serialize_comma     = sub { join ',', @{$_[0]} };
 my $serialize_comma_bool = sub { join ',', map $_ // 0, @{$_[0]} };