diff --git a/CMake/gkd350h_defs.cmake b/CMake/gkd350h_defs.cmake
index 61c697b91..fd216459a 100644
--- a/CMake/gkd350h_defs.cmake
+++ b/CMake/gkd350h_defs.cmake
@@ -1,3 +1,4 @@
+set(DISABLE_ZERO_TIER ON)
 set(USE_SDL1 ON)
 
 # Do not warn about unknown attributes, such as [[nodiscard]].