diff --git a/RNS/Resource.py b/RNS/Resource.py
index 91b1908..f367bca 100644
--- a/RNS/Resource.py
+++ b/RNS/Resource.py
@@ -197,7 +197,7 @@ class Resource:
         if timeout != None:
             self.timeout = timeout
         else:
-            self.timeout = self.link.default_timeout
+            self.timeout = self.link.rtt * 20
 
         if data != None:
             self.initiator         = True