diff --git a/Makefile b/Makefile
index ef734f1..6bb329d 100644
--- a/Makefile
+++ b/Makefile
@@ -44,6 +44,7 @@ etc/restic/b2_env.sh etc/restic/b2_pw.txt:
 install-conf: | $(SRCS_CONF)
 	install -d $(DEST_CONF)
 	install -m 0600 $(SRCS_CONF) $(DEST_CONF)
+	$(RM) etc/restic/b2_env.sh etc/restic/b2_pw.txt
 
 # target: install-systemd - Install systemd timer and service files.
 install-systemd: