diff --git a/.gitignore b/.gitignore
index 75de1ff022..ccad14f1ac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@ Preprocessing/
 References/
 Reports/
 VariantCalling/
+tmp/
 work/
 .*swp
 .DS_Store
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70477de9cc..20502ea188 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - [#614](https://github.com/SciLifeLab/Sarek/pull/614) - Add PR Template
 - [#615](https://github.com/SciLifeLab/Sarek/pull/615) - Add presentation
 - [#615](https://github.com/SciLifeLab/Sarek/pull/615) - Update documentation
+- [#620](https://github.com/SciLifeLab/Sarek/pull/620) - Add `tmp/` to `.gitignore`
 
 ### `Changed`
 - [#608](https://github.com/SciLifeLab/Sarek/pull/608) - Update Nextflow required version