diff --git a/data/dbus-interfaces/org.gnome.Mutter.ServiceChannel.xml b/data/dbus-interfaces/org.gnome.Mutter.ServiceChannel.xml
index 3717827f3..1c105cd35 100644
--- a/data/dbus-interfaces/org.gnome.Mutter.ServiceChannel.xml
+++ b/data/dbus-interfaces/org.gnome.Mutter.ServiceChannel.xml
@@ -8,6 +8,7 @@
     <!--
         ServiceClientTypes:
            PORTAL_BACKEND: 1
+           FILECHOOSER_PORTAL_BACKEND: 2
     -->
     <method name="OpenWaylandServiceConnection">
       <arg name="service_client_type" type="u" direction="in" />
diff --git a/src/core/meta-service-channel.c b/src/core/meta-service-channel.c
index a60026741..8211546b7 100644
--- a/src/core/meta-service-channel.c
+++ b/src/core/meta-service-channel.c
@@ -98,6 +98,7 @@ verify_service_client_type (uint32_t service_client_type)
     case META_SERVICE_CLIENT_TYPE_NONE:
       return FALSE;
     case META_SERVICE_CLIENT_TYPE_PORTAL_BACKEND:
+    case META_SERVICE_CLIENT_TYPE_FILECHOOSER_PORTAL_BACKEND:
       return TRUE;
     }
 
diff --git a/src/core/meta-service-channel.h b/src/core/meta-service-channel.h
index 8afbcd331..cee31add3 100644
--- a/src/core/meta-service-channel.h
+++ b/src/core/meta-service-channel.h
@@ -30,6 +30,7 @@ typedef enum _MetaServiceClientType
 {
   META_SERVICE_CLIENT_TYPE_NONE,
   META_SERVICE_CLIENT_TYPE_PORTAL_BACKEND,
+  META_SERVICE_CLIENT_TYPE_FILECHOOSER_PORTAL_BACKEND,
 } MetaServiceClientType;
 
 #define META_TYPE_SERVICE_CHANNEL (meta_service_channel_get_type ())
diff --git a/src/wayland/meta-wayland-x11-interop.c b/src/wayland/meta-wayland-x11-interop.c
index 506adc448..b39fd386a 100644
--- a/src/wayland/meta-wayland-x11-interop.c
+++ b/src/wayland/meta-wayland-x11-interop.c
@@ -101,13 +101,17 @@ x11_interop_filter (const struct wl_client *client,
   service_client =
     meta_service_channel_get_service_client (service_channel,
                                              META_SERVICE_CLIENT_TYPE_PORTAL_BACKEND);
-  if (!service_client)
-    return META_WAYLAND_ACCESS_DENIED;
 
-  if (meta_wayland_client_matches (service_client, client))
+  if (service_client && meta_wayland_client_matches (service_client, client))
     return META_WAYLAND_ACCESS_ALLOWED;
-  else
-    return META_WAYLAND_ACCESS_DENIED;
+
+  service_client =
+    meta_service_channel_get_service_client (service_channel,
+                                             META_SERVICE_CLIENT_TYPE_FILECHOOSER_PORTAL_BACKEND);
+  if (service_client && meta_wayland_client_matches (service_client, client))
+    return META_WAYLAND_ACCESS_ALLOWED;
+
+  return META_WAYLAND_ACCESS_DENIED;
 }
 
 void