diff -r a871779a4e3c -r b4af13653313 src/Connection.cpp
--- a/src/Connection.cpp	Mon Jun 01 00:14:40 2020 +0200
+++ b/src/Connection.cpp	Mon Jun 01 17:14:22 2020 +0200
@@ -41,10 +41,7 @@
 PreparedStatement* Connection::prepareStatement(relpipe::reader::string_t sql) {
 	SQLHSTMT statement = OdbcCommon::allocateHandle(SQL_HANDLE_STMT, connection);
 	SQLRETURN result = SQLPrepare(statement, (SQLCHAR*) convertor.to_bytes(sql).c_str(), SQL_NTS);
-	if (OdbcCommon::isNotSuccessful(result)) {
-		OdbcCommon::freeHandle(SQL_HANDLE_STMT, statement);
-		throw SqlException(L"Unable to prepare statement", result, SQL_HANDLE_DBC, connection); // TODO: SQL_HANDLE_STMT?
-	}
+	if (OdbcCommon::isNotSuccessful(result)) throw SqlException(L"Unable to prepare statement", result, SQL_HANDLE_STMT, statement, true);
 	return new PreparedStatement(statement);
 }