--- a/primitives/data-structs/src/lib.rs
+++ b/primitives/data-structs/src/lib.rs
@@ -378,7 +378,7 @@
 	}
 }
 
-#[derive(Encode, Decode, Debug, Clone, Copy, PartialEq, TypeInfo)]
+#[derive(Encode, Decode, Debug, Clone, Copy, PartialEq, TypeInfo, MaxEncodedLen)]
 #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
 pub enum SponsoringRateLimit {
 	SponsoringDisabled,