diff --git a/lib/winston/exception.js b/lib/winston/exception.js
index 2a01e91c7..03c98dd40 100644
--- a/lib/winston/exception.js
+++ b/lib/winston/exception.js
@@ -23,8 +23,8 @@ exception.getAllInfo = function (err) {
 exception.getProcessInfo = function () {
   return {
     pid:         process.pid,
-    uid:         process.getuid(),
-    gid:         process.getgid(),
+    uid:         process.getuid ? process.getuid() : null,
+    gid:         process.getgid ? process.getgid() : null,
     cwd:         process.cwd(),
     execPath:    process.execPath,
     version:     process.version,