diff --git a/src/cpp/ripple/LedgerProposal.cpp b/src/cpp/ripple/LedgerProposal.cpp
index 5f5f058735..7d4d193ca0 100644
--- a/src/cpp/ripple/LedgerProposal.cpp
+++ b/src/cpp/ripple/LedgerProposal.cpp
@@ -42,7 +42,7 @@ uint256 LedgerProposal::getSigningHash() const
 {
 	Serializer s((32 + 32 + 32 + 256 + 256) / 8);
 
-	s.add32(sHP_Proposal);
+	s.add32(theConfig.SIGN_PROPOSAL);
 	s.add32(mProposeSeq);
 	s.add32(mCloseTime);
 	s.add256(mPreviousLedger);
diff --git a/src/cpp/ripple/SerializedTransaction.cpp b/src/cpp/ripple/SerializedTransaction.cpp
index 7b5a58afc6..115f8343e9 100644
--- a/src/cpp/ripple/SerializedTransaction.cpp
+++ b/src/cpp/ripple/SerializedTransaction.cpp
@@ -126,7 +126,7 @@ std::vector<RippleAddress> SerializedTransaction::getAffectedAccounts() const
 
 uint256 SerializedTransaction::getSigningHash() const
 {
-	return STObject::getSigningHash(sHP_TransactionSign);
+	return STObject::getSigningHash(theConfig.SIGN_TRANSACTION);
 }
 
 uint256 SerializedTransaction::getTransactionID() const
diff --git a/src/cpp/ripple/SerializedValidation.cpp b/src/cpp/ripple/SerializedValidation.cpp
index 3f502d447c..f50ed08947 100644
--- a/src/cpp/ripple/SerializedValidation.cpp
+++ b/src/cpp/ripple/SerializedValidation.cpp
@@ -1,7 +1,7 @@
 
 #include "SerializedValidation.h"
 
-#include "HashPrefixes.h"
+#include "Config.h"
 #include "Log.h"
 
 DECLARE_INSTANCE(SerializedValidation);
@@ -70,7 +70,7 @@ void SerializedValidation::sign(uint256& signingHash, const RippleAddress& raPri
 
 uint256 SerializedValidation::getSigningHash() const
 {
-	return STObject::getSigningHash(sHP_Validation);
+	return STObject::getSigningHash(theConfig.SIGN_VALIDATION);
 }
 
 uint256 SerializedValidation::getLedgerHash() const