--- a/layout/style/CSSSupportsRule.cpp
+++ b/layout/style/CSSSupportsRule.cpp
@@ -8,18 +8,18 @@
 
 #include "mozilla/dom/CSSSupportsRuleBinding.h"
 
 using namespace mozilla::css;
 
 namespace mozilla {
 namespace dom {
 
-NS_IMPL_ADDREF_INHERITED(CSSSupportsRule, css::ConditionRule)
-NS_IMPL_RELEASE_INHERITED(CSSSupportsRule, css::ConditionRule)
+NS_IMPL_ADDREF_INHERITED(mozilla::dom::CSSSupportsRule, css::ConditionRule)
+NS_IMPL_RELEASE_INHERITED(mozilla::dom::CSSSupportsRule, css::ConditionRule)
 
 // QueryInterface implementation for CSSSupportsRule
 NS_INTERFACE_MAP_BEGIN(CSSSupportsRule)
   NS_INTERFACE_MAP_ENTRY(nsIDOMCSSGroupingRule)
   NS_INTERFACE_MAP_ENTRY(nsIDOMCSSConditionRule)
   NS_INTERFACE_MAP_ENTRY(nsIDOMCSSSupportsRule)
 NS_INTERFACE_MAP_END_INHERITING(ConditionRule)
 

--- a/layout/style/nsCSSRules.cpp
+++ b/layout/style/nsCSSRules.cpp
@@ -2217,18 +2217,18 @@ CSSSupportsRule::Clone() const
 
 /* virtual */ bool
 CSSSupportsRule::UseForPresentation(nsPresContext* aPresContext,
                                    nsMediaQueryResultCacheKey& aKey)
 {
   return mUseGroup;
 }
 
-NS_IMPL_ADDREF_INHERITED(CSSSupportsRule, css::ConditionRule)
-NS_IMPL_RELEASE_INHERITED(CSSSupportsRule, css::ConditionRule)
+NS_IMPL_ADDREF_INHERITED(mozilla::CSSSupportsRule, dom::CSSSupportsRule)
+NS_IMPL_RELEASE_INHERITED(mozilla::CSSSupportsRule, dom::CSSSupportsRule)
 
 // QueryInterface implementation for CSSSupportsRule
 NS_INTERFACE_MAP_BEGIN(CSSSupportsRule)
 NS_INTERFACE_MAP_END_INHERITING(dom::CSSSupportsRule)
 
 void
 CSSSupportsRule::GetCssTextImpl(nsAString& aCssText) const
 {