diff --git a/spine-godot/spine_godot/SpineCommon.h b/spine-godot/spine_godot/SpineCommon.h
index 7dc21df8d..8bd456e53 100644
--- a/spine-godot/spine_godot/SpineCommon.h
+++ b/spine-godot/spine_godot/SpineCommon.h
@@ -30,6 +30,7 @@
 #ifndef SPINE_COMMON_H
 #define SPINE_COMMON_H
 
+#include "core/version_generated.gen.h"
 #ifdef SPINE_GODOT_EXTENSION
 #include <godot_cpp/core/version.hpp>
 #include <godot_cpp/classes/ref_counted.hpp>
@@ -57,6 +58,15 @@ using namespace godot;
 #define RS RenderingServer
 #else
 #include "core/version.h"
+
+// When running scons with deprecated=no, these are not defined in version.h in Godot 4.5.1
+// but our code for older versions of Godot relies on them.
+#ifndef VERSION_MAJOR
+#define VERSION_MAJOR GODOT_VERSION_MAJOR
+#define VERSION_MINOR GODOT_VERSION_MINOR
+#define VERSION_PATCH GODOT_VERSION_PATCH
+#endif
+
 #if VERSION_MAJOR > 3
 #include "core/core_bind.h"
 #include "core/error/error_macros.h"