diff --git a/servo/components/style/gecko/generated/bindings.rs b/servo/components/style/gecko/generated/bindings.rs
index cad7e4054e1a..ebd39c6bb650 100644
--- a/servo/components/style/gecko/generated/bindings.rs
+++ b/servo/components/style/gecko/generated/bindings.rs
@@ -2840,7 +2840,7 @@ extern "C" {
     pub fn Servo_DeclarationBlock_RemoveProperty(
         declarations: RawServoDeclarationBlockBorrowed,
         property: *const nsACString,
-    );
+    ) -> bool;
 }
 extern "C" {
     pub fn Servo_DeclarationBlock_RemovePropertyById(
diff --git a/servo/ports/geckolib/glue.rs b/servo/ports/geckolib/glue.rs
index fe46a2151887..ec88e40fe83a 100644
--- a/servo/ports/geckolib/glue.rs
+++ b/servo/ports/geckolib/glue.rs
@@ -2874,8 +2874,8 @@ fn remove_property(
 pub unsafe extern "C" fn Servo_DeclarationBlock_RemoveProperty(
     declarations: RawServoDeclarationBlockBorrowed,
     property: *const nsACString,
-) {
-    remove_property(declarations, get_property_id_from_property!(property, ()));
+) -> bool {
+    remove_property(declarations, get_property_id_from_property!(property, false))
 }
 
 #[no_mangle]