diff --git a/oml/user/api.py b/oml/user/api.py
index 6f9e939..87ccb61 100644
--- a/oml/user/api.py
+++ b/oml/user/api.py
@@ -87,12 +87,13 @@ def getUsers(data):
     for u in models.User.query.filter(models.User.id!=settings.USER_ID).all():
         users.append(u.json())
         ids.add(u.id)
-    for id in state.nodes._local._nodes:
-        if id not in ids:
-            n = state.nodes._local._nodes[id].copy()
-            n['online'] = True
-            n['name'] = n['username']
-            users.append(n)
+    if state.nodes:
+        for id in state.nodes._local._nodes:
+            if id not in ids:
+                n = state.nodes._local._nodes[id].copy()
+                n['online'] = True
+                n['name'] = n['username']
+                users.append(n)
     users.sort(key=lambda u: ox.sort_string(str(u.get('index', '')) + 'Z' + (u.get('name') or '')))
     return {
         "users": users