diff --git a/lib/myxql/protocol/server_error_codes.ex b/lib/myxql/protocol/server_error_codes.ex
index b0d3745..45f7698 100644
--- a/lib/myxql/protocol/server_error_codes.ex
+++ b/lib/myxql/protocol/server_error_codes.ex
@@ -22,6 +22,7 @@ defmodule MyXQL.Protocol.ServerErrorCodes do
     {1062, :ER_DUP_ENTRY},
     {1146, :ER_NO_SUCH_TABLE},
     {1207, :ER_READ_ONLY_TRANSACTION},
+    {1243, :ER_UNKNOWN_PREPARED_STATEMENT_HANDLER},
     {1295, :ER_UNSUPPORTED_PS},
     {1421, :ER_STMT_HAS_NO_OPEN_CURSOR},
     {1451, :ER_ROW_IS_REFERENCED_2},