diff --git a/rules.d/core-rules.sh b/rules.d/core-rules.sh
index 0165462d..70531995 100644
--- a/rules.d/core-rules.sh
+++ b/rules.d/core-rules.sh
@@ -391,6 +391,8 @@ include_core_stella() {
 }
 libretro_stella_name="Stella"
 libretro_stella_git_url="https://github.com/stella-emu/stella.git"
+libretro_stella_build_subdir="src/libretro"
+libretro_stella_build_makefile="Makefile"
 
 include_core_stella2014() {
 	register_module core "stella2014" -ngc -wii