diff --git a/cfbs/commands.py b/cfbs/commands.py
index 514d4bda..5349c8ed 100644
--- a/cfbs/commands.py
+++ b/cfbs/commands.py
@@ -623,7 +623,10 @@ def _download_dependencies(
         if not os.path.exists(module_dir):
             if url.endswith(SUPPORTED_ARCHIVES):
                 fetch_archive(url, commit)
-            elif "index" in module or ignore_versions:
+            # a couple of cases where there will not be an archive available:
+            # - using an alternate index (index property in module data)
+            # - added by URL instead of name (no version property in module data)
+            elif "index" in module or "url" in module or ignore_versions:
                 sh("git clone %s %s" % (url, commit_dir))
                 sh("(cd %s && git checkout %s)" % (commit_dir, commit))
             else:
diff --git a/tests/shell/013_add_url_commit.sh b/tests/shell/013_add_url_commit.sh
index b3cb911d..00772d0d 100644
--- a/tests/shell/013_add_url_commit.sh
+++ b/tests/shell/013_add_url_commit.sh
@@ -16,3 +16,25 @@ grep scl cfbs.json
 cfbs build
 ls out/masterfiles/lib/scl/
 grep scl_dmidecode_example out/masterfiles/scl_example.json
+
+# Build should be possible to do on another machine
+# so let's test that it works after deleting the things which
+# will not be on the next machine.
+# Notably, cfbs add will download some things which can be reused in
+# cfbs build (git clones / zip downloads in ~/.cfengine/cfbs)
+
+rm -rf out/
+rm -rf ~/.cfengine/cfbs
+
+cfbs build
+ls out/masterfiles/lib/scl/
+grep scl_dmidecode_example out/masterfiles/scl_example.json
+
+# Finally, let's also test that we can build it again (now with the cached
+# files)
+
+rm -rf out/
+
+cfbs build
+ls out/masterfiles/lib/scl/
+grep scl_dmidecode_example out/masterfiles/scl_example.json