diff --git a/Makefile b/Makefile
index 9f6139e..0442dfd 100644
--- a/Makefile
+++ b/Makefile
@@ -12,15 +12,13 @@ include $(DEVKITARM)/base_tools
 
 UNAME_S := $(shell uname -s)
 ifeq ($(UNAME_S),Darwin)
-	sed := gsed
-	du := gdu
+	size := stat -f%z
 else
-	sed := sed
-	du := du
+	size := stat -c%s
 endif
 
 name := Luma3DS
-revision := $(shell git describe --tags --match v[0-9]* --abbrev=8 | $(sed) 's/-[0-9]*-g/-/i')
+revision := $(shell git describe --tags --match v[0-9]* --abbrev=8 | sed 's/-[0-9]*-g/-/')
 version_major := $(shell git describe --tags --match v[0-9]* | cut -c2- | cut -f1 -d- | cut -f1 -d.)
 version_minor := $(shell git describe --tags --match v[0-9]* | cut -c2- | cut -f1 -d- | cut -f2 -d.)
 version_build := $(shell git describe --tags --match v[0-9]* | cut -c2- | cut -f1 -d- | cut -f3 -d.)
@@ -154,12 +152,12 @@ $(dir_build)/config.o: CFLAGS += -DCONFIG_TITLE="\"$(name) $(revision) configura
 $(dir_build)/patches.o: CFLAGS += -DVERSION_MAJOR="$(version_major)" -DVERSION_MINOR="$(version_minor)"\
 						-DVERSION_BUILD="$(version_build)" -DISRELEASE="$(is_release)" -DCOMMIT_HASH="0x$(commit)"
 $(dir_build)/firm.o: $(dir_build)/modules.bin
-$(dir_build)/firm.o: CFLAGS += -DLUMA_SECTION0_SIZE="$(shell $(du) -b $(dir_build)/modules.bin | cut -f1)"
+$(dir_build)/firm.o: CFLAGS += -DLUMA_SECTION0_SIZE="$(shell $(size) $(dir_build)/modules.bin)"
 
 $(dir_build)/bundled.h: $(bundled)
 	@$(foreach f, $(bundled),\
-	echo "extern const u8" `(echo $(basename $(notdir $(f))) | $(sed) -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> $@;\
-	echo "extern const u32" `(echo $(basename $(notdir $(f)))| $(sed) -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> $@;\
+	echo "extern const u8" `(echo $(basename $(notdir $(f))) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> $@;\
+	echo "extern const u32" `(echo $(basename $(notdir $(f)))| sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> $@;\
 	)
 
 $(dir_build)/%.o: $(dir_source)/%.c $(dir_build)/bundled.h