1 files changed, 1 insertions, 1 deletions
diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp
index 95c4825b84..9390a93b99 100644
--- a/src/test/test_bitcoin.cpp
+++ b/src/test/test_bitcoin.cpp
@@ -145,9 +145,9 @@ TestChain100Setup::CreateAndProcessBlock(const std::vector<CMutableTransaction>&
     for (const CMutableTransaction& tx : txns)
         block.vtx.push_back(MakeTransactionRef(tx));
     // IncrementExtraNonce creates a valid coinbase and merkleRoot
-    unsigned int extraNonce = 0;
     {
         LOCK(cs_main);
+        unsigned int extraNonce = 0;
         IncrementExtraNonce(&block, chainActive.Tip(), extraNonce);
     }