fix #3613: exception when running Makefile.dryice.js
fix #3613: exception when running Makefile.dryice.js

paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace,paladox/ace