--- a/examples/FatTreeTopology/omnetpp.ini
+++ b/examples/FatTreeTopology/omnetpp.ini
@@ -158,7 +158,7 @@
 **.TOR2.relayIpc.resourceAllocator.ra.flows 		= xmldoc("config.xml", "Configuration/Switch[@id='TOR2']/IPC[@id='relayIpc']/RA/Flows")
 
 [Config FatTreeTopology]
-
+fingerprint = "9be6-59a1"
 #
 # AEs don't do anything. We're only evaluating the routing table now.
 #