diff --git a/contrib/debian/rules b/contrib/debian/rules
index dc6e75aa5..eb5648c18 100755
--- a/contrib/debian/rules
+++ b/contrib/debian/rules
@@ -84,7 +84,10 @@ ifeq (debian,$(SB_STYLE))
 	cp debian/README.Debian $(TMPLDIR)/source-template/debian
 	find $(TMPLDIR)/source-template/debian -type f | xargs sed -i "s,SIGNARCH,$(DEB_HOST_ARCH),"
 	find $(TMPLDIR)/source-template/debian -type f | xargs sed -i "s,SIGNVERSION,$(deb_version),"
-	for file in $$(find $(TMPLDIR)/source-template/debian -type f -name *SIGNARCH*); do file1=$$(echo $$file | sed "s,SIGNARCH,$(DEB_HOST_ARCH),"); mv -v $$file $$file1; done
+	set -e; for file in $$(find $(TMPLDIR)/source-template/debian -type f -name *SIGNARCH*); do \
+		file1=$$(echo $$file | sed "s,SIGNARCH,$(DEB_HOST_ARCH),"); \
+		mv -v $$file $$file1; \
+	done
 	install -m 0755 debian/fwupd.postinst $(TMPLDIR)/source-template/debian/fwupd-$(DEB_HOST_ARCH)-signed.postinst
 	install -m 0755 debian/fwupd.postrm $(TMPLDIR)/source-template/debian/fwupd-$(DEB_HOST_ARCH)-signed.postrm
 	./debian/gen_signing_changelog $(TMPLDIR)/source-template/debian fwupd $(DEB_HOST_ARCH)