diff --git a/sdk/update.go b/sdk/update.go
index 522a888..da76fb4 100644
--- a/sdk/update.go
+++ b/sdk/update.go
@@ -103,7 +103,7 @@
 
 	rb.Command().
 		Implicits(implicits).
-		Text("echo").Text(proptools.ShellEscape(content)).
+		Text("echo -n").Text(proptools.ShellEscape(content)).
 		// convert \\n to \n
 		Text("| sed 's/\\\\n/\\n/g' >").Output(gf.path)
 	rb.Command().