diff --git a/Makefile b/Makefile
index 99d987a7..f051fa3d 100644
--- a/Makefile
+++ b/Makefile
@@ -23,8 +23,8 @@ OBJS_FILE  := $(BUILD_DIR)/arm9_objects.txt
 ARM7_BIOS  := $(ROOT)/arm7_bios.bin
 ASSETS_TXT := $(ROOT)/assets.txt
 
-ASM_FILES := $(wildcard asm/*.s) $(wildcard asm/*/*.s)
-CXX_FILES := $(wildcard src/*.cpp) $(wildcard src/*/*.cpp)
+ASM_FILES := $(shell find asm -name *.s)
+CXX_FILES := $(shell find src -name *.cpp)
 ASM_OBJS = $(ASM_FILES:%.s=$(TARGET_DIR)/%.s.o)
 CXX_OBJS = $(CXX_FILES:%.cpp=$(TARGET_DIR)/%.cpp.o)