diff --git a/components/layout/animation.rs b/components/layout/animation.rs
index fecc4762d67..7f0eaf140f9 100644
--- a/components/layout/animation.rs
+++ b/components/layout/animation.rs
@@ -139,7 +139,6 @@ pub fn recalc_style_for_animations(context: &SharedLayoutContext,
                                                animation,
                                                &mut fragment.style,
                                                Some(&mut damage));
-                    animation.increment_keyframe_if_applicable();
                 }
             }
         }
diff --git a/components/style/animation.rs b/components/style/animation.rs
index 342f211d167..1ad50cbc939 100644
--- a/components/style/animation.rs
+++ b/components/style/animation.rs
@@ -66,9 +66,11 @@ impl KeyframesAnimationState {
     ///
     /// Returns true if the animation should keep running.
     pub fn tick(&mut self) -> bool {
+        debug!("KeyframesAnimationState::tick");
         let still_running = match self.iteration_state {
             KeyframesIterationState::Finite(ref mut current, ref max) => {
                 *current += 1;
+                debug!("KeyframesAnimationState::tick: current={}, max={}", current, max);
                 *current < *max
             }
             KeyframesIterationState::Infinite => true,
@@ -120,14 +122,6 @@ impl Animation {
             Animation::Keyframes(_, _, ref state) => state.paused,
         }
     }
-
-    pub fn increment_keyframe_if_applicable(&mut self) {
-        if let Animation::Keyframes(_, _, ref mut state) = *self {
-            if let KeyframesIterationState::Finite(ref mut iterations, _) = state.iteration_state {
-                *iterations += 1;
-            }
-        }
-    }
 }