diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5c8ddc7c6..e8bf1c99e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,6 +8,8 @@ endif()
 set(LIBNAME "EXTENSION-NAME") # "The name of the library"
 set(GODOT_PROJECT_DIR "project" CACHE STRING "The directory of a Godot project folder")
 
+set(GODOTCPP_API_VERSION "4.3")
+
 # Make sure all the dependencies are satisfied
 find_package(Python3 3.4 REQUIRED)
 find_program(GIT git REQUIRED)