1 files changed, 1 insertions, 0 deletions
diff --git a/htetc/handler.pl b/htetc/handler.pl
index f41db36ec..c144eca1a 100644
--- a/htetc/handler.pl
+++ b/htetc/handler.pl
@@ -93,6 +93,7 @@ sub handler
       use Date::Format;
       use Date::Parse;
       use Time::Local;
+      use Time::Duration;
       use Tie::IxHash;
       use HTML::Entities;
       use IO::Handle;