diff --git a/ouroboros-network/src/Ouroboros/Network/Diffusion/P2P.hs b/ouroboros-network/src/Ouroboros/Network/Diffusion/P2P.hs
index 0e7b4017357..d28dd6fefbd 100644
--- a/ouroboros-network/src/Ouroboros/Network/Diffusion/P2P.hs
+++ b/ouroboros-network/src/Ouroboros/Network/Diffusion/P2P.hs
@@ -1298,7 +1298,7 @@ computePeerSharingPeers readPublicState genVar reSaltAtVar PeerSelectionPolicy{.
 --
 
 -- | For Node-To-Node protocol, any connection which negotiated at least
--- 'NodeToNodeV_9' version and did not declare 'InitiatorOnlyDiffusionMode'
+-- 'NodeToNodeV_10' version and did not declare 'InitiatorOnlyDiffusionMode'
 -- will run in 'Duplex' mode.   All connections from lower versions or one that
 -- declared themselves as 'InitiatorOnly' will run in 'UnidirectionalMode'
 --