diff --git a/components/style/properties/properties.mako.rs b/components/style/properties/properties.mako.rs
index 1ea03d96667..4ee388dfe6c 100644
--- a/components/style/properties/properties.mako.rs
+++ b/components/style/properties/properties.mako.rs
@@ -3234,7 +3234,7 @@ impl ComputedValues {
                 let mut s = String::new();
                 self.get_resolved_value(
                     id,
-                    &mut CssWriter::new(&mut s)
+                    &mut s
                 ).unwrap();
                 s
             }