diff --git a/libdevcore/CommonJS.h b/libdevcore/CommonJS.h
index cc487d54c..ade089e16 100644
--- a/libdevcore/CommonJS.h
+++ b/libdevcore/CommonJS.h
@@ -38,7 +38,10 @@ template <unsigned S> std::string toJS(FixedHash<S> const& _h)
 
 template <unsigned N> std::string toJS(boost::multiprecision::number<boost::multiprecision::cpp_int_backend<N, N, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>> const& _n)
 {
-	return "0x" + toHex(toCompactBigEndian(_n, 1));
+	std::string h = toHex(toCompactBigEndian(_n, 1));
+	// remove first 0, if it is necessary;
+	std::string res = h[0] != '0' ? h : h.substr(1);
+	return "0x" + res;
 }
 
 inline std::string toJS(bytes const& _n, std::size_t _padding = 0)
diff --git a/libweb3jsonrpc/WebThreeStubServerBase.cpp b/libweb3jsonrpc/WebThreeStubServerBase.cpp
index cab986364..7524e7519 100644
--- a/libweb3jsonrpc/WebThreeStubServerBase.cpp
+++ b/libweb3jsonrpc/WebThreeStubServerBase.cpp
@@ -402,7 +402,7 @@ string WebThreeStubServerBase::eth_getCode(string const& _address, string const&
 {
 	try
 	{
-		return toJS(client()->codeAt(jsToAddress(_address), toBlockNumber(_blockNumber)), 1);
+		return toJS(client()->codeAt(jsToAddress(_address), toBlockNumber(_blockNumber)));
 	}
 	catch (...)
 	{