diff --git a/components/style/properties/longhand/counters.mako.rs b/components/style/properties/longhand/counters.mako.rs
index f87003c6da44..8e74d192ea18 100644
--- a/components/style/properties/longhand/counters.mako.rs
+++ b/components/style/properties/longhand/counters.mako.rs
@@ -251,7 +251,7 @@
     use std::borrow::{Cow, ToOwned};
 
     #[derive(Debug, Clone, PartialEq)]
-    pub struct SpecifiedValue(Vec<(String, specified::Integer)>);
+    pub struct SpecifiedValue(pub Vec<(String, specified::Integer)>);
 
     pub mod computed_value {
         use std::fmt;
diff --git a/tests/unit/style/properties/serialization.rs b/tests/unit/style/properties/serialization.rs
index 44cf18d8cd3d..72296d9f98ce 100644
--- a/tests/unit/style/properties/serialization.rs
+++ b/tests/unit/style/properties/serialization.rs
@@ -1173,13 +1173,14 @@ mod shorthand_serialization {
     mod counter_increment {
         pub use super::*;
         pub use style::properties::longhands::counter_increment::SpecifiedValue as CounterIncrement;
+        use style::values::specified::Integer;
 
         #[test]
         fn counter_increment_with_properties_should_serialize_correctly() {
             let mut properties = Vec::new();
 
-            properties.push(("counter1".to_owned(), 1));
-            properties.push(("counter2".to_owned(), -4));
+            properties.push(("counter1".to_owned(), Integer::new(1)));
+            properties.push(("counter2".to_owned(), Integer::new(-4)));
 
             let counter_increment = CounterIncrement(properties);
             let counter_increment_css = "counter1 1 counter2 -4";