diff --git a/core/object/make_virtuals.py b/core/object/make_virtuals.py
index 9ba6330c432..2a30949a5d8 100644
--- a/core/object/make_virtuals.py
+++ b/core/object/make_virtuals.py
@@ -197,6 +197,7 @@ def run(target, source, env):
 #pragma once
 
 #include "core/object/script_instance.h"
+#include "core/variant/binder_common.h"
 
 inline constexpr uintptr_t _INVALID_GDVIRTUAL_FUNC_ADDR = static_cast<uintptr_t>(-1);
 
diff --git a/core/object/script_instance.h b/core/object/script_instance.h
index c3107b8d126..a3b64d8cdef 100644
--- a/core/object/script_instance.h
+++ b/core/object/script_instance.h
@@ -30,7 +30,7 @@
 
 #pragma once
 
-#include "core/object/ref_counted.h"
+#include "core/variant/variant.h"
 
 class Script;
 class ScriptLanguage;
diff --git a/core/os/main_loop.cpp b/core/os/main_loop.cpp
index 9e3c82f4aa3..f348d58a502 100644
--- a/core/os/main_loop.cpp
+++ b/core/os/main_loop.cpp
@@ -30,6 +30,8 @@
 
 #include "main_loop.h"
 
+#include "core/object/class_db.h"
+
 void MainLoop::_bind_methods() {
 	BIND_CONSTANT(NOTIFICATION_OS_MEMORY_WARNING);
 	BIND_CONSTANT(NOTIFICATION_TRANSLATION_CHANGED);
diff --git a/modules/openxr/extensions/openxr_extension_wrapper.h b/modules/openxr/extensions/openxr_extension_wrapper.h
index 34af812b654..b23f54b8596 100644
--- a/modules/openxr/extensions/openxr_extension_wrapper.h
+++ b/modules/openxr/extensions/openxr_extension_wrapper.h
@@ -34,6 +34,7 @@
 #include "core/math/projection.h"
 #include "core/object/class_db.h"
 #include "core/object/gdvirtual.gen.inc"
+#include "core/object/ref_counted.h"
 #include "core/templates/hash_map.h"
 #include "core/templates/rid.h"
 #include "core/variant/native_ptr.h"
diff --git a/scene/main/scene_tree.h b/scene/main/scene_tree.h
index d1655f9e62c..153a597866c 100644
--- a/scene/main/scene_tree.h
+++ b/scene/main/scene_tree.h
@@ -30,6 +30,7 @@
 
 #pragma once
 
+#include "core/object/ref_counted.h"
 #include "core/os/main_loop.h"
 #include "core/os/thread_safe.h"
 #include "core/templates/paged_allocator.h"