diff --git a/crates/starpls_bazel/data/module-bazel.builtins.json b/crates/starpls_bazel/data/module-bazel.builtins.json
index dd58915..2d46767 100644
--- a/crates/starpls_bazel/data/module-bazel.builtins.json
+++ b/crates/starpls_bazel/data/module-bazel.builtins.json
@@ -106,7 +106,7 @@
           },
           {
             "name": "repo_name",
-            "type": "string",
+            "type": "string; or None",
             "doc": "The name of the external repo representing this dependency. This is by default the name of the module.",
             "default_value": "''",
             "is_mandatory": false,
diff --git a/crates/starpls_hir/src/typeck/tests.rs b/crates/starpls_hir/src/typeck/tests.rs
index 98d04ad..c09c689 100644
--- a/crates/starpls_hir/src/typeck/tests.rs
+++ b/crates/starpls_hir/src/typeck/tests.rs
@@ -202,6 +202,23 @@ fn check_infer_with_options(input: &str, expect: Expect, options: InferenceOptio
     expect.assert_eq(&res);
 }
 
+#[test]
+fn test_module_bazel_flag_alias_builtin() {
+    let mut db = TestDatabaseBuilder::default().build();
+    let file = db.create_file(
+        FileId(0),
+        Dialect::Bazel,
+        Some(FileInfo::Bazel {
+            api_context: APIContext::Module,
+            is_external: false,
+        }),
+        r#"flag_alias(name = "foo", starlark_flag = "//defs:foo")"#.to_string(),
+    );
+
+    let diagnostics = db.gcx.with_tcx(&db, |tcx| tcx.diagnostics_for_file(file));
+    assert!(diagnostics.is_empty(), "{diagnostics:#?}");
+}
+
 #[test]
 fn test_infer_basic_exprs() {
     check_infer(