diff --git a/lib/helper.js b/lib/helper.js
index 0f42f6c..d9de722 100644
--- a/lib/helper.js
+++ b/lib/helper.js
@@ -8,7 +8,7 @@ exports.findNodeProcess = function* (filterFn) {
   const command = isWin ?
     'wmic Path win32_process Where "Name = \'node.exe\'" Get CommandLine,ProcessId' :
     // command, cmd are alias of args, not POSIX standard, so we use args
-    'ps -eo "pid,args"';
+    'ps -wweo "pid,args"';
   const stdio = yield runScript(command, { stdio: 'pipe' });
   const processList = stdio.stdout.toString().split('\n')
     .reduce((arr, line) => {