diff --git a/make/release.mk b/make/release.mk
index 0eed8abb..1ac11007 100644
--- a/make/release.mk
+++ b/make/release.mk
@@ -1,80 +1,85 @@
 # to build official release tarballs, handle tagging and publish.
 
 gpgsignkey = 0x6CE95CA7  # signing key
 
 project = fence-agents
 
 deliverables = $(project)-$(version).sha256 \
                $(project)-$(version).tar.gz \
                $(project)-$(version).tar.xz
 
 all: checks setup tag tarballs sha256 sign
 
 checks:
 ifeq (,$(version))
 	@echo ERROR: need to define version=
 	@exit 1
 endif
 	@if [ ! -d .git ]; then \
 		echo This script needs to be executed from top level cluster git tree; \
 		exit 1; \
 	fi
 
 setup: checks
 	./autogen.sh
 	./configure
 	make maintainer-clean
 
 tag: setup ./tag-$(version)
 
 tag-$(version):
 ifeq (,$(release))
 	@echo Building test release $(version), no tagging
 	echo '$(version)' > .tarball-version
 else
 	# following will be captured by git-version-gen automatically
 	git tag -a -m "v$(version) release" v$(version) HEAD
 	@touch $@
 endif
 
 tarballs: tag
 	./autogen.sh
 	./configure
 	make distcheck
 
 sha256: $(project)-$(version).sha256
 
 # NOTE: dependency backtrack may fail trying to sign missing tarballs otherwise
 #       (actually, only when signing tarballs directly, but doesn't hurt anyway)
 $(deliverables): tarballs
 
 $(project)-$(version).sha256:
 	# checksum anything from deliverables except for in-prep checksums file
 	sha256sum $(deliverables:$@=) | sort -k2 > $@
 
+ifeq (,$(gpgsignkey))
+sign: tarballs
+	@echo No GPG signing key defined
+else
 sign: $(project)-$(version).sha256.asc  # "$(deliverables:=.asc)" to sign all
+endif
 
 # NOTE: cannot sign multiple files at once like this
 $(project)-$(version).%.asc: $(project)-$(version).%
 ifeq (,$(release))
 	@echo Building test release $(version), no sign
 else
-	gpg --default-key $(gpgsignkey) \
+	gpg --default-key "$(gpgsignkey)" \
 		--detach-sign \
 		--armor \
 		$<
 endif
 
 publish:
 ifeq (,$(release))
 	@echo Building test release $(version), no publishing!
 else
 	git push --tags origin
 	scp $(project)-$(version).* \
 		fedorahosted.org:$(project)
 	@echo Hey you!.. yeah you looking somewhere else!
 	@echo remember to update the wiki and send the email to cluster-devel and linux-cluster
 endif
 
 clean:
 	rm -rf $(project)* tag-* .tarball-version