diff --git a/shunt_tags b/shunt_tags
index 62fb39b..54b39f2 100755
--- a/shunt_tags
+++ b/shunt_tags
@@ -504,7 +504,7 @@ function findFilesNeedingReplacement($basedir, $recursive, $quiet) {
 		
 		$fname = $file->getFilename();
 		
-		if (! preg_match("~\.(?:mkv|mp4|avi|ogm|ogv)$~", $fname)) {
+		if (! preg_match("~\\.(?:mkv|mp4|avi|ogm|ogv)$~", $fname)) {
 			continue;
 		}