diff --git a/baseapp/baseapp.go b/baseapp/baseapp.go
index bf2885b1db9..f5da970f56d 100644
--- a/baseapp/baseapp.go
+++ b/baseapp/baseapp.go
@@ -739,6 +739,7 @@ func (app *BaseApp) runTx(mode runTxMode, txBytes []byte) (gInfo sdk.GasInfo, re
 		//
 		// Note: If the postHandler fails, we also revert the runMsgs state.
 		if app.postHandler != nil {
+			// Follow-up Ref: https://github.com/cosmos/cosmos-sdk/pull/13941
 			newCtx, err := app.postHandler(runMsgCtx, tx, result, mode == runTxModeSimulate, err == nil)
 			if err != nil {
 				return gInfo, nil, nil, priority, err
diff --git a/types/handler.go b/types/handler.go
index 8175bfc6022..fe441eada3a 100644
--- a/types/handler.go
+++ b/types/handler.go
@@ -7,7 +7,8 @@ type Handler func(ctx Context, msg Msg) (*Result, error)
 // If newCtx.IsZero(), ctx is used instead.
 type AnteHandler func(ctx Context, tx Tx, simulate bool) (newCtx Context, err error)
 
-// PostHandler
+// PostHandler like AnteHandler but it executes after RunMsgs. Runs on success
+// or failure and enables use cases like gas refunding.
 type PostHandler func(ctx Context, tx Tx, res *Result, simulate, success bool) (newCtx Context, err error)
 
 // AnteDecorator wraps the next AnteHandler to perform custom pre-processing.