diff --git a/Makefile b/Makefile
index 00d4eea..635a8d1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-DESTDIR=/usr
+DESTDIR=/usr/local
 
 all:
 	cd scripts && ./make_pkg
@@ -11,3 +11,6 @@ install-package:
 	install -m755 callirhoe $(DESTDIR)/bin/callirhoe
 	install -m755 calmagick $(DESTDIR)/bin/calmagick
 	install -m644 holidays/* $(DESTDIR)/share/callirhoe/holidays/
+
+clean:
+	rm -f callirhoe calmagick
diff --git a/scripts/make_pkg b/scripts/make_pkg
index c62a89a..3e7b5b9 100755
--- a/scripts/make_pkg
+++ b/scripts/make_pkg
@@ -38,5 +38,5 @@ create_calmagick_package() {
 set -e
 
 cd ..
-create_callirhoe_package
-create_calmagick_package
+[[ -x callirhoe ]] && echo "callirhoe package seems to exist, skipping; rm 'calliroe' to recreate" || create_callirhoe_package
+[[ -x calmagick ]] && echo "calmagick package seems to exist, skipping; rm 'calmagick' to recreate" || create_calmagick_package