I've attempted to register the Derelict package with the package registry and I keep getting the following error:

Internal error information:
object.Exception@source/dubregistry/registry.d(199): Package names may only contain ASCII letters and numbers, as well as '_' and '-'.
----------------
./dub-registry(void dubregistry.registry.DubRegistry.addPackage(vibe.data.json.Json, vibe.data.bson.BsonObjectID).int __foreachbody3290(ref immutable(char)[], ref vibe.data.json.Json)+0x44)      [0x5c0f00]
./dub-registry(_aaApply2+0x6a) [0x739eca]
./dub-registry(void dubregistry.registry.DubRegistry.addPackage(vibe.data.json.Json, vibe.data.bson.BsonObjectID)+0x178) [0x5c0cd0]
./dub-registry(void dubregistry.web.DubRegistryWebFrontend.addPackage(vibe.http.server.HTTPServerRequest, vibe.http.server.HTTPServerResponse, userman.controller.User)+0x236) [0x62c81e]
./dub-registry(void delegate(vibe.http.server.HTTPServerRequest, vibe.http.server.HTTPServerResponse) userman.web.UserManWebInterface.auth(void delegate(vibe.http.server.HTTPServerRequest,  vibe.http.server.HTTPServerResponse, userman.controller.User)).void requestHandler(vibe.http.server.HTTPServerRequest, vibe.http.server.HTTPServerResponse)+0xfa) [0x72e8c6]
./dub-registry(void vibe.http.router.URLRouter.handleRequest(vibe.http.server.HTTPServerRequest, vibe.http.server.HTTPServerResponse)+0x179) [0x63fef9]
./dub-registry(bool vibe.http.server.handleRequest(vibe.core.stream.Stream, immutable(char)[], vibe.http.server.HTTPServerListener, ref vibe.http.server.HTTPServerSettings, ref bool)+0x16b9) [0x635f01]
./dub-registry(void vibe.http.server.handleHTTPConnection(vibe.core.net.TCPConnection, vibe.http.server.HTTPServerListener)+0x146) [0x634782]
./dub-registry(void vibe.http.server.listenHTTPPlain(vibe.http.server.HTTPServerSettings, void delegate(vibe.http.server.HTTPServerRequest, vibe.http.server.HTTPServerResponse)).void doListen(vibe.http.server.HTTPServerSettings, vibe.http.server.HTTPServerListener, immutable(char)[]).void __lambda50(vibe.core.net.TCPConnection)+0x2c) [0x6311f4]
./dub-registry(extern (C) nothrow void vibe.core.drivers.libevent2_tcp.onConnect(int, short, void*).void ClientTask.execute()+0x2e2) [0x650b4a]
./dub-registry(void vibe.core.core.CoreTask.run()+0xee) [0x65a966]
./dub-registry(void core.thread.Fiber.run()+0x2a) [0x76426a]
./dub-registry(fiber_entryPoint+0x61) [0x76417d]

Not sure what's going on, as the package names don't contain anything other than ASCII.