diff --git a/core/object/ref_counted.h b/core/object/ref_counted.h
index ea2eb49f32..69b8b70334 100644
--- a/core/object/ref_counted.h
+++ b/core/object/ref_counted.h
@@ -31,6 +31,7 @@
 #pragma once
 
 #include "core/object/class_db.h"
+#include "core/object/object.h"
 #include "core/templates/safe_refcount.h"
 
 class RefCounted : public Object {
diff --git a/core/variant/variant.h b/core/variant/variant.h
index d20e2e685f..f87c2d36d5 100644
--- a/core/variant/variant.h
+++ b/core/variant/variant.h
@@ -31,6 +31,7 @@
 #pragma once
 
 #include "core/core_string_names.h"
+#include "core/error/error_macros.h"
 #include "core/io/ip_address.h"
 #include "core/math/aabb.h"
 #include "core/math/basis.h"
@@ -53,9 +54,11 @@
 #include "core/string/node_path.h"
 #include "core/string/ustring.h"
 #include "core/templates/bit_field.h"
+#include "core/templates/hashfuncs.h"
 #include "core/templates/list.h"
 #include "core/templates/paged_allocator.h"
 #include "core/templates/rid.h"
+#include "core/typedefs.h"
 #include "core/variant/array.h"
 #include "core/variant/callable.h"
 #include "core/variant/dictionary.h"
diff --git a/editor/plugins/editor_plugin.h b/editor/plugins/editor_plugin.h
index bf01f79025..381f6503e3 100644
--- a/editor/plugins/editor_plugin.h
+++ b/editor/plugins/editor_plugin.h
@@ -34,6 +34,7 @@
 #include "editor/inspector/editor_context_menu_plugin.h"
 #include "scene/3d/camera_3d.h"
 #include "scene/gui/control.h"
+#include "scene/main/node.h"
 
 class Node3D;
 class Button;
diff --git a/scene/main/node.h b/scene/main/node.h
index e3f50cba5c..0be4f94c62 100644
--- a/scene/main/node.h
+++ b/scene/main/node.h
@@ -31,6 +31,7 @@
 #pragma once
 
 #include "core/input/input_event.h"
+#include "core/object/object.h"
 #include "core/object/ref_counted.h"
 #include "core/string/node_path.h"
 #include "core/templates/iterable.h"