diff --git a/libretro/jni/Android.mk b/libretro/jni/Android.mk
index 6c5a2dd..c50ffe8 100644
--- a/libretro/jni/Android.mk
+++ b/libretro/jni/Android.mk
@@ -30,6 +30,6 @@ LOCAL_C_INCLUDES = $(foreach dir,$(GENPLUS_SRC_DIR),$(LOCAL_PATH)/$(dir)) \
 			$(LOCAL_PATH)/$(TREMOR_SRC_DIR) \
 			$(LOCAL_PATH)/$(LIBRETRO_DIR)
 
-LOCAL_CFLAGS += -ffast-math -O2 -funroll-loops -DINLINE="static inline" -DUSE_LIBTREMOR -DUSE_16BPP_RENDERING -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN -D__LIBRETRO__ -DFRONTEND_SUPPORTS_RGB565 -DALIGN_LONG -DALIGN_WORD
+LOCAL_CFLAGS += -ffast-math -O2 -funroll-loops -DINLINE="static inline" -DUSE_LIBTREMOR -DUSE_16BPP_RENDERING -DLSB_FIRST -DBYTE_ORDER=LITTLE_ENDIAN -D__LIBRETRO__ -DFRONTEND_SUPPORTS_RGB565 -DALIGN_LONG -DALIGN_WORD -DM68K_OVERCLOCK_SHIFT=20 -DZ80_OVERCLOCK_SHIFT=20
 
 include $(BUILD_SHARED_LIBRARY)