diff --git a/src/uu/id/locales/en-US.ftl b/src/uu/id/locales/en-US.ftl
index 37b477c17a8..a6b4ac2256f 100644
--- a/src/uu/id/locales/en-US.ftl
+++ b/src/uu/id/locales/en-US.ftl
@@ -25,6 +25,7 @@ id-error-cannot-find-user-name = cannot find name for user ID { $uid }
 id-error-audit-retrieve = couldn't retrieve information
 
 # Help text for command-line arguments
+id-help-ignore = ignore, for compatibility with other versions
 id-help-audit = Display the process audit user ID and other process audit properties,
   which requires privilege (not available on Linux).
 id-help-user = Display only the effective user ID as a number.
diff --git a/src/uu/id/locales/fr-FR.ftl b/src/uu/id/locales/fr-FR.ftl
index f69df611e22..b606f520757 100644
--- a/src/uu/id/locales/fr-FR.ftl
+++ b/src/uu/id/locales/fr-FR.ftl
@@ -25,6 +25,7 @@ id-error-cannot-find-user-name = impossible de trouver le nom pour l'ID utilisat
 id-error-audit-retrieve = impossible de récupérer les informations
 
 # Texte d'aide pour les arguments de ligne de commande
+id-help-ignore = ignore, pour compatibilité avec d'autres versions
 id-help-audit = Affiche l'ID utilisateur d'audit du processus et autres propriétés d'audit,
   ce qui nécessite des privilèges (non disponible sous Linux).
 id-help-user = Affiche uniquement l'ID utilisateur effectif sous forme de nombre.
diff --git a/src/uu/id/src/id.rs b/src/uu/id/src/id.rs
index 7c1e1c12c5a..dcdc692435d 100644
--- a/src/uu/id/src/id.rs
+++ b/src/uu/id/src/id.rs
@@ -69,6 +69,7 @@ fn get_context_help_text() -> String {
 }
 
 mod options {
+    pub const OPT_IGNORE: &str = "ignore";
     pub const OPT_AUDIT: &str = "audit"; // GNU's id does not have this
     pub const OPT_CONTEXT: &str = "context";
     pub const OPT_EFFECTIVE_USER: &str = "user";
@@ -353,6 +354,13 @@ pub fn uu_app() -> Command {
         .infer_long_args(true)
         .args_override_self(true)
         .after_help(translate!("id-after-help"))
+        .arg(
+            Arg::new(options::OPT_IGNORE)
+                .short('a')
+                .long(options::OPT_IGNORE)
+                .help(translate!("id-help-ignore"))
+                .action(ArgAction::SetTrue),
+        )
         .arg(
             Arg::new(options::OPT_AUDIT)
                 .short('A')
diff --git a/tests/by-util/test_id.rs b/tests/by-util/test_id.rs
index 7a7d5e9a169..169fbe2abcf 100644
--- a/tests/by-util/test_id.rs
+++ b/tests/by-util/test_id.rs
@@ -17,6 +17,11 @@ fn test_invalid_arg() {
     new_ucmd!().arg("--definitely-invalid").fails_with_code(1);
 }
 
+#[test]
+fn test_id_ignore() {
+    new_ucmd!().arg("-a").succeeds();
+}
+
 #[test]
 #[allow(unused_mut)]
 fn test_id_no_specified_user() {