diff --git a/build/release/Makefile b/build/release/Makefile
index 667d94569..69965436f 100644
--- a/build/release/Makefile
+++ b/build/release/Makefile
@@ -70,6 +70,7 @@ DOCKER_REGISTRY ?= rook
 REGISTRIES ?= $(DOCKER_REGISTRY)
 IMAGE_ARCHS := $(subst linux_,,$(filter linux_%,$(PLATFORMS)))
 IMAGE_PLATFORMS := $(subst _,/,$(subst $(SPACE),$(COMMA),$(filter linux_%,$(PLATFORMS))))
+IMAGE_PLATFORMS_COMMA=$(shell echo "$(IMAGE_PLATFORMS)" | sed 's/ /,/')
 
 S3_BUCKET ?= rook.releases
 S3_CP := aws s3 cp --only-show-errors
@@ -189,11 +190,11 @@ endef
 $(foreach r,$(REGISTRIES), $(foreach i,$(IMAGES), $(foreach a,$(IMAGE_ARCHS),$(eval $(call repo.targets,$(r),$(i),$(a))))))
 
 publish.manifest.image.%: publish.all.images $(MANIFEST_TOOL)
-	$(MANIFEST_TOOL) push from-args --platforms $(IMAGE_PLATFORMS) --template $(DOCKER_REGISTRY)/$*-ARCH:$(VERSION) --target $(DOCKER_REGISTRY)/$*:$(VERSION)
+	$(MANIFEST_TOOL) push from-args --platforms $(IMAGE_PLATFORMS_COMMA) --template $(DOCKER_REGISTRY)/$*-ARCH:$(VERSION) --target $(DOCKER_REGISTRY)/$*:$(VERSION)
 
 # add the "master" tag to the master image, but do not add the "release" tag for the release channel
 promote.manifest.image.%: promote.all.images $(MANIFEST_TOOL)
-	[ "$(CHANNEL)" = "release" ] || $(MANIFEST_TOOL) push from-args --platforms $(IMAGE_PLATFORMS) --template $(DOCKER_REGISTRY)/$*-ARCH:$(VERSION) --target $(DOCKER_REGISTRY)/$*:$(CHANNEL)
+	[ "$(CHANNEL)" = "release" ] || $(MANIFEST_TOOL) push from-args --platforms $(IMAGE_PLATFORMS_COMMA) --template $(DOCKER_REGISTRY)/$*-ARCH:$(VERSION) --target $(DOCKER_REGISTRY)/$*:$(CHANNEL)
 
 build.images: build.all.images
 publish.images: $(addprefix publish.manifest.image.,$(IMAGES))