diff --git a/pupy/modules/w.py b/pupy/modules/w.py
index 0012675a..22f799ea 100644
--- a/pupy/modules/w.py
+++ b/pupy/modules/w.py
@@ -39,6 +39,9 @@ class WModule(PupyModule):
                                 "grey" if idle > 60*60*24 else ""
                             )
 
+                        if 'dead' in session:
+                            color = 'darkgrey'
+
                         object = {
                             'HOST': Color(host, color),
                             'USER': Color(
diff --git a/pupy/packages/all/pupyps.py b/pupy/packages/all/pupyps.py
index 3c8c1008..a24c12f0 100644
--- a/pupy/packages/all/pupyps.py
+++ b/pupy/packages/all/pupyps.py
@@ -171,14 +171,20 @@ def users():
         }
 
         if 'pid' in terminfo:
-            pinfo = {
-                k:to_unicode(v) for k,v in safe_as_dict(psutil.Process(
-                    terminfo['pid']), [
-                        'exe', 'cmdline', 'name'
-                    ]).iteritems()
-            }
+            try:
+                pinfo = {
+                    k:to_unicode(v) for k,v in safe_as_dict(psutil.Process(
+                        terminfo['pid']), [
+                            'exe', 'cmdline', 'name'
+                        ]).iteritems()
+                }
 
-            terminfo.update(pinfo)
+                terminfo.update(pinfo)
+            except (psutil.NoSuchProcess, psutil.AccessDenied):
+                terminfo.update({
+                    'pid': terminfo['pid'],
+                    'dead': True,
+                })
 
         if 'terminal' in terminfo:
             try: