diff --git a/std/src/interface/rgb21.rs b/std/src/interface/rgb21.rs
index fc51bdc8..190d873a 100644
--- a/std/src/interface/rgb21.rs
+++ b/std/src/interface/rgb21.rs
@@ -255,6 +255,9 @@ pub struct TokenData {
     pub reserves: Option<ProofOfReserves>,
 }
 
+impl StrictSerialize for TokenData {}
+impl StrictDeserialize for TokenData {}
+
 const FRACTION_OVERFLOW: u8 = 1;
 const NON_EQUAL_VALUES: u8 = 2;
 const INVALID_PROOF: u8 = 3;