diff --git a/build-config.sh b/build-config.sh
index 6362637d..bee511bc 100644
--- a/build-config.sh
+++ b/build-config.sh
@@ -70,6 +70,7 @@ include_core_citra_canary
 include_core_gambatte
 include_core_sameboy
 include_core_tgbdual
+include_core_gearboy
 
 # --- Atari 2600 emulator cores ---
 include_core_stella
diff --git a/rules.d/core-rules.sh b/rules.d/core-rules.sh
index a85391bc..c563594d 100644
--- a/rules.d/core-rules.sh
+++ b/rules.d/core-rules.sh
@@ -325,6 +325,15 @@ libretro_gambatte_git_url="https://github.com/libretro/gambatte-libretro.git"
 libretro_gambatte_build_platform="$FORMAT_COMPILER_TARGET_ALT"
 libretro_gambatte_build_makefile="Makefile.libretro"
 
+include_core_gearboy() {
+	register_module core "gearboy"
+}
+libretro_gearboy_name="Gearboy"
+libretro_gearboy_git_url="https://github.com/drhelius/Gearboy.git"
+libretro_gearboy_build_platform="$FORMAT_COMPILER_TARGET_ALT"
+libretro_gearboy_build_subdir="platforms/libretro"
+libretro_gearboy_build_makefile="Makefile"
+
 include_core_sameboy() {
 	register_module core "sameboy"
 }