diff --git a/Makefile b/Makefile
index 91964dc709bcc4b08fe43f836a87c7d9638b5189..8d18be961dac06c2c13fceaa13ff672ed4ca8b5e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,6 @@
 .PHONY: install
 
+PREFIX := /usr
+
 install:
-	cp git-* $(DESTDIR)/usr/bin/
+	cp git-* $(DESTDIR)$(PREFIX)/bin/