diff --git a/chain-impl-mockchain/src/fragment/mod.rs b/chain-impl-mockchain/src/fragment/mod.rs
index b4852e71a..e5c03a6cc 100644
--- a/chain-impl-mockchain/src/fragment/mod.rs
+++ b/chain-impl-mockchain/src/fragment/mod.rs
@@ -89,6 +89,7 @@ impl FragmentTag {
             12 => Some(FragmentTag::VoteTally),
             13 => Some(FragmentTag::MintToken),
             14 => Some(FragmentTag::Evm),
+            15 => Some(FragmentTag::EvmMapping),
             _ => None,
         }
     }
diff --git a/chain-impl-mockchain/src/fragment/test.rs b/chain-impl-mockchain/src/fragment/test.rs
index 0f671e92e..7a744a5ed 100644
--- a/chain-impl-mockchain/src/fragment/test.rs
+++ b/chain-impl-mockchain/src/fragment/test.rs
@@ -12,7 +12,7 @@ impl Arbitrary for Fragment {
         #[cfg(not(feature = "evm"))]
         let r = g.next_u32() % 14;
         #[cfg(feature = "evm")]
-        let r = g.next_u32() % 15;
+        let r = g.next_u32() % 16;
         match r {
             0 => Fragment::Initial(Arbitrary::arbitrary(g)),
             1 => Fragment::OldUtxoDeclaration(Arbitrary::arbitrary(g)),
@@ -30,6 +30,8 @@ impl Arbitrary for Fragment {
             13 => Fragment::MintToken(Arbitrary::arbitrary(g)),
             #[cfg(feature = "evm")]
             14 => Fragment::Evm(Arbitrary::arbitrary(g)),
+            #[cfg(feature = "evm")]
+            15 => Fragment::EvmMapping(Arbitrary::arbitrary(g)),
             _ => unreachable!(),
         }
     }