diff --git a/cli/src/commands/branch.rs b/cli/src/commands/branch.rs
index a06273407..ffbf684a5 100644
--- a/cli/src/commands/branch.rs
+++ b/cli/src/commands/branch.rs
@@ -150,7 +150,9 @@ pub struct BranchTrackArgs {
     /// By default, the specified name matches exactly. Use `glob:` prefix to
     /// select branches by wildcard pattern. For details, see
     /// https://github.com/martinvonz/jj/blob/main/docs/revsets.md#string-patterns.
-    #[arg(required = true)]
+    ///
+    /// Examples: branch@remote, glob:main@*, glob:jjfan-*@upstream
+    #[arg(required = true, value_name = "BRANCH@REMOTE")]
     pub names: Vec<RemoteBranchNamePattern>,
 }
 
@@ -165,7 +167,9 @@ pub struct BranchUntrackArgs {
     /// By default, the specified name matches exactly. Use `glob:` prefix to
     /// select branches by wildcard pattern. For details, see
     /// https://github.com/martinvonz/jj/blob/main/docs/revsets.md#string-patterns.
-    #[arg(required = true)]
+    ///
+    /// Examples: branch@remote, glob:main@*, glob:jjfan-*@upstream
+    #[arg(required = true, value_name = "BRANCH@REMOTE")]
     pub names: Vec<RemoteBranchNamePattern>,
 }
 
diff --git a/cli/tests/test_branch_command.rs b/cli/tests/test_branch_command.rs
index 16c78892c..43fd21a7b 100644
--- a/cli/tests/test_branch_command.rs
+++ b/cli/tests/test_branch_command.rs
@@ -812,7 +812,7 @@ fn test_branch_track_untrack_patterns() {
     test_env.jj_cmd_ok(&repo_path, &["branch", "create", "main"]);
     insta::assert_snapshot!(
         test_env.jj_cmd_cli_error(&repo_path, &["branch", "track", "main"]), @r###"
-    error: invalid value 'main' for '<NAMES>...': remote branch must be specified in branch@remote form
+    error: invalid value 'main' for '<BRANCH@REMOTE>...': remote branch must be specified in branch@remote form
 
     For more information, try '--help'.
     "###);