diff --git a/ubb-usb/Makefile b/ubb-usb/Makefile
index d501da9..93b4f96 100644
--- a/ubb-usb/Makefile
+++ b/ubb-usb/Makefile
@@ -1,2 +1,11 @@
+.PHONY:	sch pdf clean
+
 sch:
 	eeschema `pwd`/concept.sch
+
+pdf:
+	eeschema --plot=ps `pwd`/concept.sch
+	ps2pdf concept.ps concept.pdf
+
+clean:
+	rm -f concept.ps concept.pdf