diff --git a/components/script/layout_wrapper.rs b/components/script/layout_wrapper.rs
index e4df1b77ec3..12d830e5fad 100644
--- a/components/script/layout_wrapper.rs
+++ b/components/script/layout_wrapper.rs
@@ -468,6 +468,10 @@ impl<'le> TElement for ServoLayoutElement<'le> {
     fn has_css_animations(&self, _pseudo: Option<&PseudoElement>) -> bool {
         panic!("this should be only called on gecko");
     }
+
+    fn has_css_transitions(&self, _pseudo: Option<&PseudoElement>) -> bool {
+        panic!("this should be only called on gecko");
+    }
 }
 
 impl<'le> PartialEq for ServoLayoutElement<'le> {
diff --git a/components/style/dom.rs b/components/style/dom.rs
index 0221160b3e9..f56194fb14b 100644
--- a/components/style/dom.rs
+++ b/components/style/dom.rs
@@ -472,6 +472,9 @@ pub trait TElement : Eq + PartialEq + Debug + Hash + Sized + Copy + Clone +
     /// Returns true if the element has a CSS animation.
     fn has_css_animations(&self, _pseudo: Option<&PseudoElement>) -> bool;
 
+    /// Returns true if the element has a CSS transition.
+    fn has_css_transitions(&self, _pseudo: Option<&PseudoElement>) -> bool;
+
     /// Returns true if the element has animation restyle hints.
     fn has_animation_restyle_hints(&self) -> bool {
         let data = match self.borrow_data() {
diff --git a/components/style/gecko/wrapper.rs b/components/style/gecko/wrapper.rs
index 45dce1d304a..d429c905b71 100644
--- a/components/style/gecko/wrapper.rs
+++ b/components/style/gecko/wrapper.rs
@@ -34,6 +34,7 @@ use gecko_bindings::bindings::{Gecko_SetNodeFlags, Gecko_UnsetNodeFlags};
 use gecko_bindings::bindings::Gecko_ClassOrClassList;
 use gecko_bindings::bindings::Gecko_ElementHasAnimations;
 use gecko_bindings::bindings::Gecko_ElementHasCSSAnimations;
+use gecko_bindings::bindings::Gecko_ElementHasCSSTransitions;
 use gecko_bindings::bindings::Gecko_GetAnimationRule;
 use gecko_bindings::bindings::Gecko_GetExtraContentStyleDeclarations;
 use gecko_bindings::bindings::Gecko_GetHTMLPresentationAttrDeclarationBlock;
@@ -709,6 +710,11 @@ impl<'le> TElement for GeckoElement<'le> {
         let atom_ptr = PseudoElement::ns_atom_or_null_from_opt(pseudo);
         unsafe { Gecko_ElementHasCSSAnimations(self.0, atom_ptr) }
     }
+
+    fn has_css_transitions(&self, pseudo: Option<&PseudoElement>) -> bool {
+        let atom_ptr = PseudoElement::ns_atom_or_null_from_opt(pseudo);
+        unsafe { Gecko_ElementHasCSSTransitions(self.0, atom_ptr) }
+    }
 }
 
 impl<'le> PartialEq for GeckoElement<'le> {
diff --git a/components/style/gecko_bindings/bindings.rs b/components/style/gecko_bindings/bindings.rs
index 2d66af833c4..bd7b434c5d8 100644
--- a/components/style/gecko_bindings/bindings.rs
+++ b/components/style/gecko_bindings/bindings.rs
@@ -648,6 +648,11 @@ extern "C" {
                                          aPseudoTagOrNull: *mut nsIAtom)
      -> bool;
 }
+extern "C" {
+    pub fn Gecko_ElementHasCSSTransitions(aElement: RawGeckoElementBorrowed,
+                                          aPseudoTagOrNull: *mut nsIAtom)
+     -> bool;
+}
 extern "C" {
     pub fn Gecko_GetProgressFromComputedTiming(aComputedTiming:
                                                    RawGeckoComputedTimingBorrowed)