diff --git a/components/style/animation.rs b/components/style/animation.rs
index 685d3933512..bbf847d7f14 100644
--- a/components/style/animation.rs
+++ b/components/style/animation.rs
@@ -3,7 +3,6 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 //! CSS transitions and animations.
-#![deny(missing_docs)]
 
 use Atom;
 use bezier::Bezier;
@@ -409,7 +408,6 @@ impl PropertyAnimation {
 /// Inserts transitions into the queue of running animations as applicable for
 /// the given style difference. This is called from the layout worker threads.
 /// Returns true if any animations were kicked off and false otherwise.
-#[cfg(feature = "servo")]
 pub fn start_transitions_if_applicable(
     new_animations_sender: &Sender<Animation>,
     opaque_node: OpaqueNode,
@@ -629,6 +627,7 @@ pub fn update_style_for_animation_frame(
 
     true
 }
+
 /// Updates a single animation and associated style based on the current time.
 pub fn update_style_for_animation<E>(
     context: &SharedStyleContext,
diff --git a/components/style/lib.rs b/components/style/lib.rs
index 538dce92b87..20a54c62680 100644
--- a/components/style/lib.rs
+++ b/components/style/lib.rs
@@ -103,7 +103,6 @@ extern crate void;
 #[macro_use]
 mod macros;
 
-#[cfg(feature = "servo")]
 pub mod animation;
 pub mod applicable_declarations;
 #[allow(missing_docs)] // TODO.
diff --git a/components/style/properties/helpers/animated_properties.mako.rs b/components/style/properties/helpers/animated_properties.mako.rs
index 387507516e8..fa6166e17ae 100644
--- a/components/style/properties/helpers/animated_properties.mako.rs
+++ b/components/style/properties/helpers/animated_properties.mako.rs
@@ -196,7 +196,6 @@ pub fn nscsspropertyid_is_transitionable(property: nsCSSPropertyID) -> bool {
 
 /// An animated property interpolation between two computed values for that
 /// property.
-#[cfg(feature = "servo")]
 #[derive(Clone, Debug, PartialEq)]
 #[cfg_attr(feature = "servo", derive(MallocSizeOf))]
 pub enum AnimatedProperty {
@@ -213,7 +212,6 @@ pub enum AnimatedProperty {
     % endfor
 }
 
-#[cfg(feature = "servo")]
 impl AnimatedProperty {
     /// Get the name of this property.
     pub fn name(&self) -> &'static str {
@@ -255,9 +253,12 @@ impl AnimatedProperty {
 
     /// Update `style` with the proper computed style corresponding to this
     /// animation at `progress`.
+    #[cfg_attr(feature = "gecko", allow(unused))]
     pub fn update(&self, style: &mut ComputedValues, progress: f64) {
-        match *self {
-            % for prop in data.longhands:
+        #[cfg(feature = "servo")]
+        {
+            match *self {
+                % for prop in data.longhands:
                 % if prop.animatable:
                     AnimatedProperty::${prop.camel_case}(ref from, ref to) => {
                         // https://drafts.csswg.org/web-animations/#discrete-animation-type
@@ -276,7 +277,8 @@ impl AnimatedProperty {
                         style.mutate_${prop.style_struct.name_lower}().set_${prop.ident}(value);
                     }
                 % endif
-            % endfor
+                % endfor
+            }
         }
     }