diff --git a/components/style/properties/longhand/box.mako.rs b/components/style/properties/longhand/box.mako.rs
index 857d7b4d58c..531096dcf3b 100644
--- a/components/style/properties/longhand/box.mako.rs
+++ b/components/style/properties/longhand/box.mako.rs
@@ -721,7 +721,7 @@ ${helpers.predefined_type("scroll-snap-destination",
                           products="gecko",
                           boxed="True",
                           spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-destination)",
-                          animation_value_type="ComputedValue")}
+                          animation_value_type="discrete")}
 
 ${helpers.predefined_type(
     "scroll-snap-coordinate",
@@ -730,7 +730,7 @@ ${helpers.predefined_type(
     vector=True,
     products="gecko",
     spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-destination)",
-    animation_value_type="ComputedValue",
+    animation_value_type="discrete",
     allow_empty="NotInitial"
 )}