diff --git a/src/Currency.cpp b/src/Currency.cpp
index 34a9d03fa2..df3183427d 100644
--- a/src/Currency.cpp
+++ b/src/Currency.cpp
@@ -4,6 +4,9 @@
 #include <cmath>
 #include <stdexcept>
 
+// CAUTION: This is currently dead code based on the old currency scheme
+// It will be updated.
+
 uint160 Currency::sNatMask("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000");
 uint160 Currency::sNatZero("FFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000");
 uint64 Amount::sMaxCanon(1ull << 63);
diff --git a/src/Currency.h b/src/Currency.h
index 2fca53bd36..7bcea2cc0b 100644
--- a/src/Currency.h
+++ b/src/Currency.h
@@ -1,6 +1,9 @@
 #ifndef __CURRENCY__
 #define __CURRENCY__
 
+// CAUTION: This is currently dead code based on the old currency scheme.
+// It will be updated to use the new STAmount code
+
 #include <string>
 
 #include "uint256.h"