diff --git a/src/blenderbim/Makefile b/src/blenderbim/Makefile
index 00e1e30dc9..b4e963187d 100644
--- a/src/blenderbim/Makefile
+++ b/src/blenderbim/Makefile
@@ -304,7 +304,8 @@ ifeq ($(IS_STABLE), TRUE)
 	cd dist && zip -r blenderbim-$(VERSION)-$(PYVERSION)-$(PLATFORM).zip ./*
 else
 	cd dist/blenderbim && $(SED) "s/0, 0, 0/$(VERSION_MAJOR), $(VERSION_MINOR), $(VERSION_PATCH), $(VERSION_DATE)/" __init__.py
-	cd dist/blenderbim && $(SED) "s/0.0.0/$(VERSION).$(VERSION_DATE)/" blender_manifest.toml
+	# Blender manifest version must be semver compatible.
+	cd dist/blenderbim && $(SED) "s/0.0.0/$(VERSION)-$(VERSION_DATE)/" blender_manifest.toml
 	cd dist/blenderbim && $(SED) "s/8888888/$(LAST_COMMIT_HASH)/" __init__.py
 	cd dist && zip -r blenderbim-$(VERSION).$(VERSION_DATE)-$(PYVERSION)-$(PLATFORM).zip ./*
 endif