diff --git a/mods/short_url.pl b/mods/short_url.pl
index 47fc4d0..3c93bc9 100755
--- a/mods/short_url.pl
+++ b/mods/short_url.pl
@@ -7,7 +7,7 @@
 
 my $message = join(' ', @ARGV);
 my ($url) = $message =~ /$RE{URI}{-keep}/;
-if ($url) {
+if ($url && length($url) >= 40) {
     my $short_url = makeashorterlink($url);
     print $short_url;
 }