diff --git a/doc/classes/SubViewport.xml b/doc/classes/SubViewport.xml
new file mode 100644
index 000000000000..561e5d1a1569
--- /dev/null
+++ b/doc/classes/SubViewport.xml
@@ -0,0 +1,51 @@
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diff --git a/editor/icons/SubViewport.svg b/editor/icons/SubViewport.svg
new file mode 100644
index 000000000000..103b1006adb7
--- /dev/null
+++ b/editor/icons/SubViewport.svg
@@ -0,0 +1 @@
+
\ No newline at end of file
diff --git a/scene/register_scene_types.cpp b/scene/register_scene_types.cpp
index e73e560656be..22c000fae791 100644
--- a/scene/register_scene_types.cpp
+++ b/scene/register_scene_types.cpp
@@ -270,6 +270,7 @@ void register_scene_types() {
ClassDB::register_virtual_class();
ClassDB::register_virtual_class();
+ ClassDB::register_class();
ClassDB::register_class();
ClassDB::register_class();
ClassDB::register_class();