2 files changed, 2 insertions, 0 deletions
diff --git a/crates/mozart/src/commands/install.rs b/crates/mozart/src/commands/install.rs
index f920f02..b9ff1af 100644
--- a/crates/mozart/src/commands/install.rs
+++ b/crates/mozart/src/commands/install.rs
@@ -809,6 +809,7 @@ pub async fn execute(
         }
 
         let root_pkg = mozart_core::package::read_from_file(&composer_json_path)?;
+        root_pkg.validate_root_does_not_self_require()?;
         let missing = lock.get_missing_requirement_info(&root_pkg, dev_mode);
         if !missing.is_empty() {
             for line in &missing {
diff --git a/crates/mozart/src/commands/update.rs b/crates/mozart/src/commands/update.rs
index da2fd95..3a468d4 100644
--- a/crates/mozart/src/commands/update.rs
+++ b/crates/mozart/src/commands/update.rs
@@ -747,6 +747,7 @@ pub async fn execute(
         ));
     }
     let composer_json = package::read_from_file(&composer_json_path)?;
+    composer_json.validate_root_does_not_self_require()?;
     let composer_json_content = std::fs::read_to_string(&composer_json_path)?;
 
     let lock_path = working_dir.join("composer.lock");