diff --git a/core/src/main/java/org/kiwix/kiwixmobile/core/webserver/ZimHostFragment.kt b/core/src/main/java/org/kiwix/kiwixmobile/core/webserver/ZimHostFragment.kt
index feadfbda9..84f57414e 100644
--- a/core/src/main/java/org/kiwix/kiwixmobile/core/webserver/ZimHostFragment.kt
+++ b/core/src/main/java/org/kiwix/kiwixmobile/core/webserver/ZimHostFragment.kt
@@ -49,6 +49,7 @@ import org.kiwix.kiwixmobile.core.base.BaseFragment
 import org.kiwix.kiwixmobile.core.databinding.ActivityZimHostBinding
 import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.cachedComponent
 import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.hasNotificationPermission
+import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.isCustomApp
 import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.requestNotificationPermission
 import org.kiwix.kiwixmobile.core.extensions.toast
 import org.kiwix.kiwixmobile.core.navigateToAppSettings
@@ -483,7 +484,7 @@ class ZimHostFragment : BaseFragment(), ZimHostCallbacks, ZimHostContract.View {
   @Suppress("NestedBlockDepth")
   override fun addBooks(books: List<BooksOnDiskListItem>) {
     // Check if this is the app module, as custom apps may have multiple package names
-    if (requireActivity().packageName == "org.kiwix.kiwixmobile") {
+    if (!requireActivity().isCustomApp()) {
       booksAdapter.items = books
     } else {
       val updatedBooksList: MutableList<BooksOnDiskListItem> = arrayListOf()
diff --git a/custom/src/main/java/org/kiwix/kiwixmobile/custom/main/CustomMainActivity.kt b/custom/src/main/java/org/kiwix/kiwixmobile/custom/main/CustomMainActivity.kt
index 3c0d1fca3..308506cb9 100644
--- a/custom/src/main/java/org/kiwix/kiwixmobile/custom/main/CustomMainActivity.kt
+++ b/custom/src/main/java/org/kiwix/kiwixmobile/custom/main/CustomMainActivity.kt
@@ -95,6 +95,16 @@ class CustomMainActivity : CoreMainActivity() {
   override fun setupDrawerToggle(toolbar: Toolbar) {
     super.setupDrawerToggle(toolbar)
     activityCustomMainBinding.drawerNavView.apply {
+      /**
+       * Hide the 'ZimHostFragment' option from the navigation menu
+       * because we are now using fd (FileDescriptor)
+       * to read the zim file from the asset folder. Currently,
+       * 'KiwixServer' is unable to host zim files via fd.
+       * This feature is temporarily hidden for custom apps.
+       * We will re-enable it for custom apps once the issue is resolved.
+       * For more info see https://github.com/kiwix/kiwix-android/pull/3516
+       */
+      menu.findItem(R.id.menu_host_books)?.isVisible = false
       setNavigationItemSelectedListener { item ->
         closeNavigationDrawer()
         onNavigationItemSelected(item)