diff --git a/docs/ibc/custom.md b/docs/ibc/custom.md
index dd840ebf13..09cd27a951 100644
--- a/docs/ibc/custom.md
+++ b/docs/ibc/custom.md
@@ -45,7 +45,7 @@ func (k Keeper) OnChanOpenInit(ctx sdk.Context,
     portID string,
     channelID string,
     channelCap *capabilitytypes.Capability,
-    counterParty channeltypes.Counterparty,
+    counterparty channeltypes.Counterparty,
     version string,
 ) error {
     // OpenInit must claim the channelCapability that IBC passes into the callback
diff --git a/x/ibc/core/05-port/types/module.go b/x/ibc/core/05-port/types/module.go
index a9a7b50922..4c68673201 100644
--- a/x/ibc/core/05-port/types/module.go
+++ b/x/ibc/core/05-port/types/module.go
@@ -17,7 +17,7 @@ type IBCModule interface {
 		portID string,
 		channelID string,
 		channelCap *capabilitytypes.Capability,
-		counterParty channeltypes.Counterparty,
+		counterparty channeltypes.Counterparty,
 		version string,
 	) error
 
diff --git a/x/ibc/core/spec/05_callbacks.md b/x/ibc/core/spec/05_callbacks.md
index c276ae370e..dd74738025 100644
--- a/x/ibc/core/spec/05_callbacks.md
+++ b/x/ibc/core/spec/05_callbacks.md
@@ -18,7 +18,7 @@ type IBCModule interface {
 		portId string,
 		channelId string,
 		channelCap *capability.Capability,
-		counterParty channeltypes.Counterparty,
+		counterparty channeltypes.Counterparty,
 		version string,
 	) error