diff --git a/scripts/patch_dashboard_modular.py b/scripts/patch_dashboard_modular.py
index 451ae44..ae5eb72 100644
--- a/scripts/patch_dashboard_modular.py
+++ b/scripts/patch_dashboard_modular.py
@@ -199,11 +199,11 @@ text = text.replace(
     root.appendChild(sidebar);
     setupMobileNav(root, sidebar);
   }
+  root.appendChild(main);
   const shellHeader = document.createElement('div');
   shellHeader.id = 'db-shell-header-slot';
   renderSlot('shell:header', shellHeader);
-  if (shellHeader.children.length) root.insertBefore(shellHeader, main);
-  root.appendChild(main);""",
+  if (shellHeader.children.length) root.insertBefore(shellHeader, main);""",
 )
 
 # 6) selectPage toolbar
diff --git a/tests/unit/test_dashboard_shell_order.py b/tests/unit/test_dashboard_shell_order.py
index aac79ab..0d96c6c 100644
--- a/tests/unit/test_dashboard_shell_order.py
+++ b/tests/unit/test_dashboard_shell_order.py
@@ -13,11 +13,12 @@ from __future__ import annotations
 import re
 from pathlib import Path
 
+ROOT = Path(__file__).resolve().parents[2]
 FRONTEND = (
-    Path(__file__).resolve().parents[2]
-    / "src" / "praisonaiui" / "templates" / "frontend" / "plugins"
+    ROOT / "src" / "praisonaiui" / "templates" / "frontend" / "plugins"
 )
 DASHBOARD_JS = FRONTEND / "dashboard.js"
+GENERATOR = ROOT / "scripts" / "patch_dashboard_modular.py"
 
 
 class TestDashboardShellOrder:
@@ -48,3 +49,17 @@ class TestDashboardShellOrder:
             body,
         )
         assert m, "shellHeader insert must be guarded by children.length"
+
+    def test_generator_emits_main_before_insert_before(self):
+        src = GENERATOR.read_text()
+        append_idx = src.find("root.appendChild(main);\n  const shellHeader")
+        insert_idx = src.find("root.insertBefore(shellHeader, main)")
+        assert append_idx != -1, (
+            "generator must emit root.appendChild(main) before shellHeader"
+        )
+        assert insert_idx != -1, (
+            "generator must emit root.insertBefore(shellHeader, main)"
+        )
+        assert append_idx < insert_idx, (
+            "generator must append main to root before insertBefore references it"
+        )