diff --git a/coins/monero/src/wallet/mod.rs b/coins/monero/src/wallet/mod.rs
index 8d5a539b..91d3315e 100644
--- a/coins/monero/src/wallet/mod.rs
+++ b/coins/monero/src/wallet/mod.rs
@@ -95,17 +95,21 @@ pub(crate) fn amount_encryption(amount: u64, key: Scalar) -> [u8; 8] {
 
 fn amount_decryption(amount: &EcdhInfo, key: Scalar) -> u64 {
   match amount {
-    EcdhInfo::Standard { mask, amount } => {
-      let shared_sec1 = hash(key.as_bytes());
-      let shared_sec2 = hash(&shared_sec1);
-      let _mask_scalar = mask - Scalar::from_bytes_mod_order(shared_sec1);
+    EcdhInfo::Standard { mask: _, amount } => {
+      #[cfg(feature = "experimental")]
+      {
+        let shared_sec = hash(&hash(key.as_bytes()));
+        let amount_scalar = amount - Scalar::from_bytes_mod_order(shared_sec);
+        // d2b from rctTypes.cpp
+        let amount_significant_bytes = amount_scalar.to_bytes()[0 .. 8].try_into().unwrap();
+        u64::from_le_bytes(amount_significant_bytes)
+      }
 
-      let amount_scalar = amount - Scalar::from_bytes_mod_order(shared_sec2);
-      // get first 64 bits (d2b in rctTypes.cpp)
-      let amount_significant_bytes =
-        amount_scalar.to_bytes()[0 .. 8].try_into().expect("Can't fail");
-
-      u64::from_le_bytes(amount_significant_bytes)
+      #[cfg(not(feature = "experimental"))]
+      {
+        let _ = amount;
+        todo!("decrypting a legacy monero transaction's amount")
+      }
     }
     EcdhInfo::Bulletproof { amount } => {
       u64::from_le_bytes(amount_encryption(u64::from_le_bytes(*amount), key))