1 files changed, 4 insertions, 5 deletions
diff --git a/debian/Makefile b/debian/Makefile
index a898ba3..cd8dc36 100644
--- a/debian/Makefile
+++ b/debian/Makefile
@@ -4,11 +4,7 @@ unexport MAKEFLAGS
 .DELETE_ON_ERROR:
 .SUFFIXES:
 SHELL := bash
-# Careful: nounset breaks things, as per usual.
-.SHELLFLAGS := -e -o pipefail -c
-
-.PHONY: DO
-DO:
+.SHELLFLAGS := -eu -o pipefail -c
 
 escape = $(subst ','\'',$(1))
 
@@ -38,6 +34,9 @@ this_dir   := $(dir $(realpath $(firstword $(MAKEFILE_LIST))))
 root       := $(this_dir)/..
 build_area := $(this_dir)/build-area
 
+.PHONY: DO
+DO:
+
 .PHONY: deps
 deps:
 	apt-get update