# Where to define type aliases within a module's hierarchy

**URL:** <https://discourse.julialang.org/t/where-to-define-type-aliases-within-a-modules-hierarchy/35131>\
**Category:** New to Julia\
**Tags:** module\
**Created:** [February 25, 2020, 6:46pm UTC](https://discourse.julialang.org/t/where-to-define-type-aliases-within-a-modules-hierarchy/35131 "2020-02-25T18:46:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mkarikom](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/mkarikom/32/7096_2.png) [@mkarikom](https://discourse.julialang.org/u/mkarikom)\
**Post date:** [February 25, 2020, 6:46pm UTC](https://discourse.julialang.org/t/where-to-define-type-aliases-within-a-modules-hierarchy/35131/1 "2020-02-25T18:46:21Z")

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Is there a guideline on where to put type aliases in a module with multiple source files?