diff -aurN a/HTML/Template/IT.php b/HTML/Template/IT.php
--- a/HTML/Template/IT.php	2010-03-10 03:08:10.000000000 -0500
+++ b/HTML/Template/IT.php	2017-08-01 15:12:31.161235223 -0400
@@ -1088,9 +1088,10 @@
         $content = fread($fh, $fsize);
         fclose($fh);
 
-        return preg_replace(
-            "#<!-- INCLUDE (.*) -->#ime",
-            "\$this->getFile('\\1')",
+        return preg_replace_callback(
+            "#<!-- INCLUDE (.*) -->#im",
+            function($matches) {
+              return $this->getFile($matches[1]); },
             $content
         );
     } // end func getFile