https://issues.dlang.org/show_bug.cgi?id=2043 It's a really old bug, and top-voted in bugzilla according to https://issues.dlang.org/buglist.cgi?bug_status=__open__&columnlist=component%2Cbug_status%2Cresolution%2Cshort_desc%2Cchangeddate%2Cvotes&list_id=218657&order=votes%20DESC%2Cpriority%2Cbug_severity&query_format=specific