diff --git a/shell.go b/shell.go
index 968caff..a79f353 100644
--- a/shell.go
+++ b/shell.go
@@ -4,7 +4,6 @@ import (
 	"bufio"
 	"fmt"
 	"io"
-	"os"
 	"strings"
 )
 
@@ -27,7 +26,7 @@ func interactiveShell(reader io.Reader, writer io.Writer) {
 
 		switch cmd {
 		case "help", "?":
-			printHelp(os.Stdout)
+			printHelp(writer)
 		case "exit", "quit":
 			quitShell = true
 		default: