diff --git a/components/script/dom/cssstyledeclaration.rs b/components/script/dom/cssstyledeclaration.rs
index 1af030613b9..f04bd4017ee 100644
--- a/components/script/dom/cssstyledeclaration.rs
+++ b/components/script/dom/cssstyledeclaration.rs
@@ -127,7 +127,7 @@ impl CSSStyleOwner {
 
     fn base_url(&self) -> ServoUrl {
         match *self {
-            CSSStyleOwner::Element(ref el) => window_from_node(&**el).get_url(),
+            CSSStyleOwner::Element(ref el) => window_from_node(&**el).Document().base_url(),
             CSSStyleOwner::CSSRule(ref rule, _) => {
                 rule.parent_stylesheet().style_stylesheet().base_url.clone()
             }