1 files changed, 12 insertions, 1 deletions
diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp
index 78f5c2c4b6..f1cdc36b72 100644
--- a/src/bitcoin-tx.cpp
+++ b/src/bitcoin-tx.cpp
@@ -444,9 +444,18 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr)
     tx = mergedTx;
 }
 
+class Secp256k1Init
+{
+public:
+    Secp256k1Init() { ECC_Start(); }
+    ~Secp256k1Init() { ECC_Stop(); }
+};
+
 static void MutateTx(CMutableTransaction& tx, const string& command,
                      const string& commandVal)
 {
+    boost::scoped_ptr<Secp256k1Init> ecc;
+
     if (command == "nversion")
         MutateTxVersion(tx, commandVal);
     else if (command == "locktime")
@@ -464,8 +473,10 @@ static void MutateTx(CMutableTransaction& tx, const string& command,
     else if (command == "outscript")
         MutateTxAddOutScript(tx, commandVal);
 
-    else if (command == "sign")
+    else if (command == "sign") {
+        if (!ecc) { ecc.reset(new Secp256k1Init()); }
         MutateTxSign(tx, commandVal);
+    }
 
     else if (command == "load")
         RegisterLoad(commandVal);