diff --git a/container/build_ts_js.py b/container/build_ts_js.py
index 4dbce9eadc2fc9d5af23088c12333e60b3983e75..f24320aebe1259eb8675b498a63428682bc02b4c 100755
--- a/container/build_ts_js.py
+++ b/container/build_ts_js.py
@@ -36,10 +36,10 @@ if __name__ == '__main__':
                         help='the converted target file')
     input_arguments = parser.parse_args()
 
-    node = '../../../../prebuilts/build-tools/common/nodejs/\
+    NODE_PATH = '../../../../prebuilts/build-tools/common/nodejs/\
 node-v12.18.4-linux-x64/bin/node'
-    tsc = '../../../../ark/ts2abc/ts2panda/node_modules/typescript/bin/tsc'
-    cmd = [node, tsc]
+    TSC_PATH = '../../../../ark/ts2abc/ts2panda/node_modules/typescript/bin/tsc'
+    cmd = [NODE_PATH, TSC_PATH]
     run_command(cmd)
 
     for dirname in os.listdir("./jscode") :