diff --git a/src/komodo_globals.h b/src/komodo_globals.h
index 16d796fb2..858385a37 100644
--- a/src/komodo_globals.h
+++ b/src/komodo_globals.h
@@ -57,8 +57,8 @@ uint32_t ASSETCHAINS_MAGIC = 2387029918;
 uint64_t ASSETCHAINS_SUPPLY = 10;
 uint64_t ASSETCHAINS_COMMISSION;
 
-#define _ASSETCHAINS_TIMELOCKOFF 0xffffffffffffffffLL
-uint64_t ASSETCHAINS_TIMELOCKABOVE = _ASSETCHAINS_TIMELOCKOFF;
+#define _ASSETCHAINS_TIMELOCKOFF 0x7fffffffffffffffLL
+int64_t ASSETCHAINS_TIMELOCKABOVE = _ASSETCHAINS_TIMELOCKOFF;
 uint64_t ASSETCHAINS_TIMELOCKFROM = 0;
 uint64_t ASSETCHAINS_TIMELOCKTO = 0;
 
diff --git a/src/main.cpp b/src/main.cpp
index 07e357020..f0edc8ef0 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -964,7 +964,7 @@ bool ContextualCheckTransaction(const CTransaction& tx, CValidationState &state,
         }
     }
 
-    if (tx.IsCoinBase() && tx.vout[0].value >= ASSETCHAINS_TIMELOCKABOVE)
+    if (tx.IsCoinBase() && tx.vout[0].nValue >= ASSETCHAINS_TIMELOCKABOVE)
     {
         // if time locks are on, ensure that this coin base is time locked exactly as it should be