diff --git a/carps-cups/Makefile b/carps-cups/Makefile
index 6c9fc4e..3060f22 100644
--- a/carps-cups/Makefile
+++ b/carps-cups/Makefile
@@ -1,6 +1,6 @@
 CFLAGS=-Wall -Wextra --std=c99 -O2
-CUPSDIR=$(shell cups-config --serverbin)
-CUPSDATADIR=$(shell cups-config --datadir)
+CUPSDIR=$(DESTDIR)$(shell cups-config --serverbin)
+CUPSDATADIR=$(DESTDIR)$(shell cups-config --datadir)
 
 all:	carps-decode rastertocarps ppd/*.ppd