diff --git a/CMakeLists.txt b/CMakeLists.txt
index 62a7c17467..c72ba19e21 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2522,7 +2522,7 @@ elseif(PSP)
     )
 
 elseif(PS2)
-  list(APPEND EXTRA_CFLAGS "-DPS2")
+  list(APPEND EXTRA_CFLAGS "-DPS2" "-D__PS2__")
 
   if(SDL_FILESYSTEM)
     set(SDL_FILESYSTEM_PS2 1)