diff --git a/src/script/sign.cpp b/src/script/sign.cpp
index 66dc38e95d92..1202df17b136 100644
--- a/src/script/sign.cpp
+++ b/src/script/sign.cpp
@@ -27,7 +27,7 @@ bool TransactionSignatureCreator::CreateSig(std::vector<unsigned char>& vchSig,
     uint256 hash;
     try {
         hash = SignatureHash(scriptCode, *txTo, nIn, nHashType, amount, sigversion);
-    } catch (std::logic_error ex) {
+    } catch (const std::logic_error& ex) {
         return false;
     }