diff --git a/Makefile b/Makefile
index 6fc4593..aaf0364 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ CC = gcc
 LIBS = $(shell pkg-config --libs sdl2 SDL2_ttf)
 CFLAGS = -Wall -Werror -O3 -Wno-error=unused-function -Wno-error=unused-variable -Wno-error=unused-but-set-variable -Wno-error=missing-braces -Wno-error=incompatible-pointer-types
 
-.PHONY: all clean clean-all pretty-code install mrproper
+.PHONY: all clean clean-all pretty-code install mrproper get-roms
 
 all: dist/hpemu
 
@@ -26,28 +26,9 @@ dist/hpemu: src/bus.o \
 	$(CC) $(CFLAGS) $(LIBS) -o $@ $+
 
 # Installing
-ROMs/sxrom-a:
-	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-a.zip" --output - | funzip > "ROMs/sxrom-a"
-ROMs/sxrom-b:
-	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-b.zip" --output - | funzip > "ROMs/sxrom-b"
-ROMs/sxrom-c:
-	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-c.zip" --output - | funzip > "ROMs/sxrom-c"
-ROMs/sxrom-d:
-	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-d.zip" --output - | funzip > "ROMs/sxrom-d"
-ROMs/sxrom-e:
-	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-e.zip" --output - | funzip > "ROMs/sxrom-e"
-ROMs/sxrom-j:
-	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-j.zip" --output - | funzip > "ROMs/sxrom-j"
-ROMs/gxrom-l:
-	curl "https://www.hpcalc.org/hp48/pc/emulators/gxrom-l.zip" --output - | funzip > "ROMs/gxrom-l"
-ROMs/gxrom-m:
-	curl "https://www.hpcalc.org/hp48/pc/emulators/gxrom-m.zip" --output - | funzip > "ROMs/gxrom-m"
-ROMs/gxrom-p:
-	curl "https://www.hpcalc.org/hp48/pc/emulators/gxrom-p.zip" --output - | funzip > "ROMs/gxrom-p"
-ROMs/gxrom-r:
-	curl "https://www.hpcalc.org/hp48/pc/emulators/gxrom-r.zip" --output - | funzip > "ROMs/gxrom-r"
 
-get-roms: ROMs/sxrom-a ROMs/sxrom-b ROMs/sxrom-c ROMs/sxrom-d ROMs/sxrom-e ROMs/sxrom-j ROMs/gxrom-l ROMs/gxrom-m ROMs/gxrom-p ROMs/gxrom-r
+get-roms:
+	make -C ROMs get-roms
 
 # Cleaning
 clean:
diff --git a/ROMs/Makefile b/ROMs/Makefile
new file mode 100644
index 0000000..effc770
--- /dev/null
+++ b/ROMs/Makefile
@@ -0,0 +1,27 @@
+.PHONY: get-roms mrproper
+
+get-roms: sxrom-a sxrom-b sxrom-c sxrom-d sxrom-e sxrom-j gxrom-l gxrom-m gxrom-p gxrom-r
+
+mrproper:
+	-rm sxrom-a sxrom-b sxrom-c sxrom-d sxrom-e sxrom-j gxrom-l gxrom-m gxrom-p gxrom-r
+
+sxrom-a:
+	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-a.zip" --output - | funzip > "sxrom-a"
+sxrom-b:
+	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-b.zip" --output - | funzip > "sxrom-b"
+sxrom-c:
+	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-c.zip" --output - | funzip > "sxrom-c"
+sxrom-d:
+	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-d.zip" --output - | funzip > "sxrom-d"
+sxrom-e:
+	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-e.zip" --output - | funzip > "sxrom-e"
+sxrom-j:
+	curl "https://www.hpcalc.org/hp48/pc/emulators/sxrom-j.zip" --output - | funzip > "sxrom-j"
+gxrom-l:
+	curl "https://www.hpcalc.org/hp48/pc/emulators/gxrom-l.zip" --output - | funzip > "gxrom-l"
+gxrom-m:
+	curl "https://www.hpcalc.org/hp48/pc/emulators/gxrom-m.zip" --output - | funzip > "gxrom-m"
+gxrom-p:
+	curl "https://www.hpcalc.org/hp48/pc/emulators/gxrom-p.zip" --output - | funzip > "gxrom-p"
+gxrom-r:
+	curl "https://www.hpcalc.org/hp48/pc/emulators/gxrom-r.zip" --output - | funzip > "gxrom-r"