diff --git a/src/amount.cpp b/src/amount.cpp
index 99ed48d30..060d8bb01 100644
--- a/src/amount.cpp
+++ b/src/amount.cpp
@@ -8,7 +8,7 @@
 
 #include "tinyformat.h"
 
-const std::string CURRENCY_UNIT = "BTC";
+const std::string CURRENCY_UNIT = "BLK";
 
 CFeeRate::CFeeRate(const CAmount& nFeePaid, size_t nBytes_)
 {