diff --git a/server/middleware.go b/server/middleware.go
index f6e1b9806356359f15e4a94dbbbef96bd808ca30..c45cfad4f61af95b5237d69b62547c8150911fec 100644
--- a/server/middleware.go
+++ b/server/middleware.go
@@ -33,7 +33,7 @@ func softMiddleware(ac *appCfg.Config) wish.Middleware {
 				cmd.Use = use
 				cmd.SetIn(s)
 				cmd.SetOut(s)
-				cmd.SetErr(s)
+				cmd.SetErr(s.Stderr())
 				cmd.SetArgs(s.Command())
 				err := cmd.ExecuteContext(ctx)
 				if err != nil {