diff --git a/resources/views/partials/nav-main.blade.php b/resources/views/partials/nav-main.blade.php
index 29401900623..d8963a2ca80 100644
--- a/resources/views/partials/nav-main.blade.php
+++ b/resources/views/partials/nav-main.blade.php
@@ -14,7 +14,7 @@
                                 <a href="{{ $item->url() }}" {{ $item->attributes() }}>
                                     <i>{!! $item->icon() !!}</i><span>{{ __($item->name()) }}</span>
                                 </a>
-                                @if ($item->children() && $item->isActive())
+                                @if ($item->children() && ($item->isActive() || $item->hasActiveChild()))
                                     <ul>
                                         @foreach ($item->children() as $child)
                                             <li class="{{ $child->isActive() ? 'current' : '' }}">
diff --git a/resources/views/partials/nav-mobile.blade.php b/resources/views/partials/nav-mobile.blade.php
index 047a90e77d0..6fcbb4b0dd2 100644
--- a/resources/views/partials/nav-mobile.blade.php
+++ b/resources/views/partials/nav-mobile.blade.php
@@ -13,7 +13,7 @@
                             <a href="{{ $item->url() }}">
                                 <i>{!! $item->icon() !!}</i><span>{{ __($item->name()) }}</span>
                             </a>
-                            @if ($item->children() && $item->isActive())
+                            @if ($item->children() && ($item->isActive() || $item->hasActiveChild()))
                                 <ul>
                                     @foreach ($item->children() as $child)
                                         <li class="{{ $child->isActive() ? 'current' : '' }}">
diff --git a/src/CP/Navigation/NavItem.php b/src/CP/Navigation/NavItem.php
index 787977bda16..454ae6d8efa 100644
--- a/src/CP/Navigation/NavItem.php
+++ b/src/CP/Navigation/NavItem.php
@@ -2,6 +2,7 @@
 
 namespace Statamic\CP\Navigation;
 
+use Illuminate\Support\Collection;
 use Statamic\Facades\CP\Nav;
 use Statamic\Statamic;
 use Statamic\Support\Html;
@@ -326,6 +327,16 @@ public function isActive()
         return preg_match('#'.$pattern.'#', request()->decodedPath()) === 1;
     }
 
+    /**
+     * Get whether the nav item has a currently active child.
+     *
+     * @return bool
+     */
+    public function hasActiveChild()
+    {
+        return $this->children() instanceof Collection && $this->children()->first(fn ($item) => $item->isActive()) !== null;
+    }
+
     /**
      * Get or set custom view.
      *