diff --git a/Configure b/Configure
index 62de7ee0..73890dde 100755
--- a/Configure
+++ b/Configure
@@ -483,7 +483,7 @@ our %disabled = ( # "what"         => "comment"
 		  "skfeng"              => "default",
 		  "sdfeng"              => "default",
 		  "gmieng"              => "default",
-		  #"gmtls"               => "default",
+		  "gmtls"               => "default",
 		);
 
 # Note: => pair form used for aesthetics, not to truly make a hash table