Disable command+filename completion in bash readline

I'm trying to use "read -e" to implement a user prompt with custom commands. For this I must disable the default command+filename completion. I tried this: complete -W 'cmd1 cmd2 cmd3' -D and indeed pressing tab once on an empty prompt started with "c", but pressing it twice did not present cmd1 cmd2 cmd3, instead the usual bash aliases/OS programs in the PATH starting with "c". Any tips on how to do what I want? It seems there's "set disable-completion on" , but no "set disable-os-command-completion" or something similar. Thanks.