diff --git a/rules.d/core-rules.sh b/rules.d/core-rules.sh
index ae36bc4ac..2b2382756 100644
--- a/rules.d/core-rules.sh
+++ b/rules.d/core-rules.sh
@@ -349,10 +349,10 @@ libretro_openlara_build_makefile="Makefile"
 include_core_desmume2015() {
 register_module core "desmume2015" -ngc -ps3 -psp1 -qnx -wii
 }
-libretro_desmume_name="DeSmuME 2015"
-libretro_desmume_git_url="https://github.com/libretro/desmume2015.git"
-libretro_desmume_build_subdir="desmume"
-libretro_desmume_build_makefile="Makefile.libretro"
+libretro_desmume2015_name="DeSmuME 2015"
+libretro_desmume2015_git_url="https://github.com/libretro/desmume2015.git"
+libretro_desmume2015_build_subdir="desmume"
+libretro_desmume2015_build_makefile="Makefile.libretro"
 
 include_core_quicknes() {
 	register_module core "quicknes"