diff options
Diffstat (limited to 'nixos/doc/manual/development/option-declarations.section.md')
| -rw-r--r-- | nixos/doc/manual/development/option-declarations.section.md | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/nixos/doc/manual/development/option-declarations.section.md b/nixos/doc/manual/development/option-declarations.section.md index 819fc6d891f..53ecb9b3a62 100644 --- a/nixos/doc/manual/development/option-declarations.section.md +++ b/nixos/doc/manual/development/option-declarations.section.md @@ -27,9 +27,10 @@ The function `mkOption` accepts the following arguments. `type` -: The type of the option (see [](#sec-option-types)). It may be - omitted, but that's not advisable since it may lead to errors that - are hard to diagnose. +: The type of the option (see [](#sec-option-types)). This + argument is mandatory for nixpkgs modules. Setting this is highly + recommended for the sake of documentation and type checking. In case it is + not set, a fallback type with unspecified behavior is used. `default` |