diff --git a/Makefile b/Makefile
index b79db48..b1ea327 100644
--- a/Makefile
+++ b/Makefile
@@ -1,2 +1,3 @@
-clark: clark.lisp make-image.lisp
-	sbcl --disable-debugger --load make-image.lisp
+.PHONY: all
+all:
+	$(MAKE) -C lisp/
diff --git a/lisp/Makefile b/lisp/Makefile
new file mode 100644
index 0000000..b79db48
--- /dev/null
+++ b/lisp/Makefile
@@ -0,0 +1,2 @@
+clark: clark.lisp make-image.lisp
+	sbcl --disable-debugger --load make-image.lisp
diff --git a/clark.asd b/lisp/clark.asd
similarity index 100%
rename from clark.asd
rename to lisp/clark.asd
diff --git a/clark.lisp b/lisp/clark.lisp
similarity index 100%
rename from clark.lisp
rename to lisp/clark.lisp
diff --git a/make-image.lisp b/lisp/make-image.lisp
similarity index 100%
rename from make-image.lisp
rename to lisp/make-image.lisp
diff --git a/package.lisp b/lisp/package.lisp
similarity index 100%
rename from package.lisp
rename to lisp/package.lisp