diff --git a/components/style/build_gecko.rs b/components/style/build_gecko.rs
index 8c784ac1eb5..68edd747931 100644
--- a/components/style/build_gecko.rs
+++ b/components/style/build_gecko.rs
@@ -271,6 +271,7 @@ mod bindings {
             .include(add_include("mozilla/dom/NameSpaceConstants.h"))
             .include(add_include("mozilla/LookAndFeel.h"))
             .include(add_include("mozilla/ServoBindings.h"))
+            .include(add_include("nsCSSFontFaceRule.h"))
             .include(add_include("nsMediaFeatures.h"))
             .include(add_include("nsMediaList.h"))
             // FIXME(emilio): Incrementally remove these "pub use"s. Probably
@@ -337,6 +338,7 @@ mod bindings {
             "nsBorderColors",
             "nscolor",
             "nsChangeHint",
+            "nsCSSFontFaceRule",
             "nsCSSKeyword",
             "nsCSSPropertyID",
             "nsCSSProps",
@@ -609,6 +611,7 @@ mod bindings {
             "StyleBasicShape",
             "StyleBasicShapeType",
             "StyleShapeSource",
+            "nsCSSFontFaceRule",
             "nsCSSKeyword",
             "nsCSSPropertyID",
             "nsCSSShadowArray",
diff --git a/components/style/gecko_bindings/sugar/refptr.rs b/components/style/gecko_bindings/sugar/refptr.rs
index 0202afb3292..5953652f3a5 100644
--- a/components/style/gecko_bindings/sugar/refptr.rs
+++ b/components/style/gecko_bindings/sugar/refptr.rs
@@ -235,10 +235,7 @@ impl<T: RefCounted> PartialEq for RefPtr<T> {
 unsafe impl<T: ThreadSafeRefCounted> Send for RefPtr<T> {}
 unsafe impl<T: ThreadSafeRefCounted> Sync for RefPtr<T> {}
 
-// Companion of NS_DECL_THREADSAFE_FFI_REFCOUNTING.
-//
-// Gets you a free RefCounted impl implemented via FFI.
-macro_rules! impl_threadsafe_refcount {
+macro_rules! impl_refcount {
     ($t:ty, $addref:ident, $release:ident) => (
         unsafe impl RefCounted for $t {
             fn addref(&self) {
@@ -248,6 +245,18 @@ macro_rules! impl_threadsafe_refcount {
                 ::gecko_bindings::bindings::$release(self as *const _ as *mut _)
             }
         }
+    );
+}
+
+impl_refcount!(::gecko_bindings::structs::nsCSSFontFaceRule,
+               Gecko_CSSFontFaceRule_AddRef, Gecko_CSSFontFaceRule_Release);
+
+// Companion of NS_DECL_THREADSAFE_FFI_REFCOUNTING.
+//
+// Gets you a free RefCounted impl implemented via FFI.
+macro_rules! impl_threadsafe_refcount {
+    ($t:ty, $addref:ident, $release:ident) => (
+        impl_refcount!($t, $addref, $release);
         unsafe impl ThreadSafeRefCounted for $t {}
     );
 }