diff --git a/client/embed/embed.go b/client/embed/embed.go
index 62c9927d7..b00a46f58 100644
--- a/client/embed/embed.go
+++ b/client/embed/embed.go
@@ -503,7 +503,7 @@ func (c *Client) VerifySSHHostKey(peerAddress string, key []byte) error {
 
 // SetPerformance retunes a running Client. Only PreallocatedBuffersPerPool
 // takes effect, and only when it was nonzero at construction;
-// MaxBatchSize is construction-only and is ignored here.
+// MaxBatchSize is construction-only and returns an error if set here.
 //
 // Returns ErrClientNotStarted / ErrEngineNotStarted if the Client is not
 // running yet.