diff --git a/builder/test-simplestreams/streams/v1/index.json b/builder/test-simplestreams/streams/v1/index.json
index 3180af7ea..2d241cd39 100644
--- a/builder/test-simplestreams/streams/v1/index.json
+++ b/builder/test-simplestreams/streams/v1/index.json
@@ -12,7 +12,7 @@
    "datatype": "image-downloads",
    "format": "products:1.0",
    "updated": "Fri, 08 May 2015 13:20:51 +0000",
-   "path": "streams/v1/net.cirros-cloud:released:download.json"
+   "path": "streams/v1/net.cirros-cloud_released_download.json"
   }
  }
 }
diff --git a/builder/test-simplestreams/streams/v1/net.cirros-cloud:released:download.json b/builder/test-simplestreams/streams/v1/net.cirros-cloud_released_download.json
similarity index 100%
rename from builder/test-simplestreams/streams/v1/net.cirros-cloud:released:download.json
rename to builder/test-simplestreams/streams/v1/net.cirros-cloud_released_download.json