diff --git a/leaflet.textpath.js b/leaflet.textpath.js
index c4a81c5..3469d2e 100755
--- a/leaflet.textpath.js
+++ b/leaflet.textpath.js
@@ -206,7 +206,7 @@ var PolylineTextPath = {
         var textNode = L.SVG.create('text'),
             textPath = L.SVG.create('textPath');
 
-        var dy = options.offset || this._path.getAttribute('stroke-width');
+        var dy = 'offset' in options ? options.offset : this._path.getAttribute('stroke-width');
 
         textPath.setAttributeNS("http://www.w3.org/1999/xlink", "xlink:href", '#'+id);
         textNode.setAttribute('dy', dy);