diff --git a/Tribler/community/tunnel/conversion.py b/Tribler/community/tunnel/conversion.py
index 46c35cdc5cd..dee7a14b005 100644
--- a/Tribler/community/tunnel/conversion.py
+++ b/Tribler/community/tunnel/conversion.py
@@ -488,7 +488,7 @@ def could_be_dht(data):
 
     @staticmethod
     def could_be_dispersy(data):
-        return data[:TUNNEL_PREFIX_LENGHT] == TUNNEL_PREFIX and len(data) > 22
+        return data[:TUNNEL_PREFIX_LENGHT] == TUNNEL_PREFIX and len(data) >= (23 + TUNNEL_PREFIX_LENGHT)
 
     @staticmethod
     def is_allowed(data):