diff --git a/crates/moon/src/cli/mooncake_adapter.rs b/crates/moon/src/cli/mooncake_adapter.rs
index 9cb33bc5..0425443a 100644
--- a/crates/moon/src/cli/mooncake_adapter.rs
+++ b/crates/moon/src/cli/mooncake_adapter.rs
@@ -35,20 +35,33 @@ pub fn execute_cli<T: Serialize>(
     }
 }
 
+pub fn execute_cli_with_inherit_stdin<T: Serialize>(
+    _cli: UniversalFlags,
+    _cmd: T,
+    args: &[&str],
+) -> anyhow::Result<i32> {
+    let mut child = call_mooncake()
+        .args(args)
+        .env("MOONCAKE_ALLOW_DIRECT", "1")
+        .stdout(Stdio::inherit())
+        .stdin(Stdio::inherit())
+        .stderr(Stdio::inherit())
+        .spawn()?;
+
+    let status = child.wait()?;
+    if status.success() {
+        Ok(0)
+    } else {
+        bail!("failed to run `moon {}`", args.join(" "))
+    }
+}
+
 pub fn login_cli(cli: UniversalFlags, cmd: LoginSubcommand) -> anyhow::Result<i32> {
-    execute_cli(
-        cli,
-        MooncakeSubcommands::Login(cmd),
-        &["--read-args-from-stdin"],
-    )
+    execute_cli_with_inherit_stdin(cli, MooncakeSubcommands::Login(cmd), &["login"])
 }
 
 pub fn register_cli(cli: UniversalFlags, cmd: RegisterSubcommand) -> anyhow::Result<i32> {
-    execute_cli(
-        cli,
-        MooncakeSubcommands::Register(cmd),
-        &["--read-args-from-stdin"],
-    )
+    execute_cli_with_inherit_stdin(cli, MooncakeSubcommands::Register(cmd), &["register"])
 }
 
 pub fn publish_cli(cli: UniversalFlags, cmd: PublishSubcommand) -> anyhow::Result<i32> {