diff --git a/src/browser/ui/dom/CSSProperty.js b/src/browser/ui/dom/CSSProperty.js
index 50f0802300..05f764ba95 100644
--- a/src/browser/ui/dom/CSSProperty.js
+++ b/src/browser/ui/dom/CSSProperty.js
@@ -33,7 +33,8 @@ var isUnitlessNumber = {
 
   // SVG-related properties
   fillOpacity: true,
-  strokeOpacity: true
+  strokeOpacity: true,
+  strokeWidth: true
 };
 
 /**