diff --git a/src/primitives/transaction.h b/src/primitives/transaction.h
--- a/src/primitives/transaction.h
+++ b/src/primitives/transaction.h
@@ -127,9 +127,11 @@
     CTxIn() { nSequence = SEQUENCE_FINAL; }
 
     explicit CTxIn(COutPoint prevoutIn, CScript scriptSigIn = CScript(),
-                   uint32_t nSequenceIn = SEQUENCE_FINAL);
+                   uint32_t nSequenceIn = SEQUENCE_FINAL)
+        : prevout(prevoutIn), scriptSig(scriptSigIn), nSequence(nSequenceIn) {}
     CTxIn(uint256 hashPrevTx, uint32_t nOut, CScript scriptSigIn = CScript(),
-          uint32_t nSequenceIn = SEQUENCE_FINAL);
+          uint32_t nSequenceIn = SEQUENCE_FINAL)
+        : CTxIn(COutPoint(hashPrevTx, nOut), scriptSigIn, nSequenceIn) {}
 
     ADD_SERIALIZE_METHODS;
 
@@ -161,7 +163,8 @@
 
     CTxOut() { SetNull(); }
 
-    CTxOut(const Amount &nValueIn, CScript scriptPubKeyIn);
+    CTxOut(Amount nValueIn, CScript scriptPubKeyIn)
+        : nValue(nValueIn), scriptPubKey(scriptPubKeyIn) {}
 
     ADD_SERIALIZE_METHODS;
 
diff --git a/src/primitives/transaction.cpp b/src/primitives/transaction.cpp
--- a/src/primitives/transaction.cpp
+++ b/src/primitives/transaction.cpp
@@ -13,19 +13,6 @@
     return strprintf("COutPoint(%s, %u)", hash.ToString().substr(0, 10), n);
 }
 
-CTxIn::CTxIn(COutPoint prevoutIn, CScript scriptSigIn, uint32_t nSequenceIn) {
-    prevout = prevoutIn;
-    scriptSig = scriptSigIn;
-    nSequence = nSequenceIn;
-}
-
-CTxIn::CTxIn(uint256 hashPrevTx, uint32_t nOut, CScript scriptSigIn,
-             uint32_t nSequenceIn) {
-    prevout = COutPoint(hashPrevTx, nOut);
-    scriptSig = scriptSigIn;
-    nSequence = nSequenceIn;
-}
-
 std::string CTxIn::ToString() const {
     std::string str;
     str += "CTxIn(";
@@ -42,11 +29,6 @@
     return str;
 }
 
-CTxOut::CTxOut(const Amount &nValueIn, CScript scriptPubKeyIn) {
-    nValue = nValueIn;
-    scriptPubKey = scriptPubKeyIn;
-}
-
 std::string CTxOut::ToString() const {
     return strprintf("CTxOut(nValue=%d.%08d, scriptPubKey=%s)",
                      nValue.GetSatoshis() / COIN.GetSatoshis(),