--- a/layout/reftests/svg/reftest.list
+++ b/layout/reftests/svg/reftest.list
@@ -459,17 +459,17 @@ default-preferences
 == clipPath-and-mask-on-outflowElement-01a.html clipPath-on-outflowElement-01-ref.html
 == clipPath-and-mask-on-outflowElement-01b.html clipPath-on-outflowElement-01-ref.html
 
 != nested-mask-mode.svg about:blank
 == mask-empty-size.svg about:blank
 
 == paint-on-maskLayer-1a.html paint-on-maskLayer-1-ref.html
 == paint-on-maskLayer-1b.html paint-on-maskLayer-1-ref.html
-== paint-on-maskLayer-1c.html paint-on-maskLayer-1-ref.html
+pref(layout.css.clip-path-shapes.enabled,true) == paint-on-maskLayer-1c.html paint-on-maskLayer-1-ref.html
 
 fuzzy(71,817) == filter-on-continuation-box-01.html filter-on-continuation-box-ref.html
 == mask-contains-inner-svg-01.svg pass.svg
 == mask-contains-inner-svg-02.svg pass.svg
 
 == mask-use-element-01.svg pass.svg
 == clip-use-element-01.svg pass.svg
 == clip-use-element-02.svg pass.svg