diff --git a/contrib/Makefile b/contrib/Makefile
index bc490e8..cb8728e 100644
--- a/contrib/Makefile
+++ b/contrib/Makefile
@@ -5,8 +5,9 @@ all:
 install: all
 	$(INSTALL) -d $(SYSTEMDDIR)
 	$(INSTALL) kpatch.service $(SYSTEMDDIR)
+	sed -i 's~PREFIX~$(PREFIX)~' $(SYSTEMDDIR)/kpatch.service
 
 uninstall:
-	$(RM) -f $(SYSTEMDDIR)/kpatch.service
+	$(RM) $(SYSTEMDDIR)/kpatch.service
 
 clean:
diff --git a/contrib/kpatch.service b/contrib/kpatch.service
index 405653e..9f81838 100644
--- a/contrib/kpatch.service
+++ b/contrib/kpatch.service
@@ -4,8 +4,8 @@ Description="Apply kpatch kernel patches"
 [Service]
 Type=oneshot
 RemainAfterExit=yes
-ExecStart=/usr/sbin/kpatch load --all
-ExecStop=/usr/sbin/kpatch unload --all
+ExecStart=PREFIX/sbin/kpatch load --all
+ExecStop=PREFIX/sbin/kpatch unload --all
 
 [Install]
 WantedBy=multi-user.target