diff --git a/src/animation/PropertyBinding.js b/src/animation/PropertyBinding.js
index c68991f519a2d5cc53900abf4bc90f7c2e8c371a..26e6d776c02cfe42e0a163aaccc840b940ed6151 100644
--- a/src/animation/PropertyBinding.js
+++ b/src/animation/PropertyBinding.js
@@ -544,7 +544,7 @@ PropertyBinding.parseTrackName = function( trackName ) {
 	//    scene:helium_balloon_model:helium_balloon_model.position
 	// created and tested via https://regex101.com/#javascript
 
-	var re = /^((?:\w+[\/:])*)(\w+)?(?:\.(\w+)(?:\[(.+)\])?)?\.(\w+)(?:\[(.+)\])?$/;
+	var re = /^((?:[\w-]+[\/:])*)([\w-]+)?(?:\.([\w-]+)(?:\[(.+)\])?)?\.([\w-]+)(?:\[(.+)\])?$/;
 	var matches = re.exec( trackName );
 
 	if ( ! matches ) {