diff --git a/anonstream/user.py b/anonstream/user.py
index 8530810..d9f4eea 100644
--- a/anonstream/user.py
+++ b/anonstream/user.py
@@ -174,19 +174,16 @@ def verify(user, digest, answer):
 
 @with_timestamp()
 def deverify(timestamp, user):
-    if not user['verified']:
-        return
-
-    n_user_messages = 0
-    for message in reversed(MESSAGES):
-        message_sent_ago = timestamp - message['timestamp']
-        if message_sent_ago >= CONFIG['FLOOD_MESSAGE_DURATION']:
-            break
-        elif message['token'] == user['token']:
-            n_user_messages += 1
-
-    if n_user_messages >= CONFIG['FLOOD_MESSAGE_THRESHOLD']:
-        user['verified'] = False
+    if user['verified']:
+        n_user_messages = 0
+        for message in reversed(MESSAGES):
+            message_sent_ago = timestamp - message['timestamp']
+            if message_sent_ago >= CONFIG['FLOOD_MESSAGE_DURATION']:
+                break
+            elif message['token'] == user['token']:
+                n_user_messages += 1
+        if n_user_messages >= CONFIG['FLOOD_MESSAGE_THRESHOLD']:
+            user['verified'] = False
 
 def _update_presence(timestamp, user):
     old, user['presence'] = user['presence'], get_presence(timestamp, user)