analysis_add_custom_build.md

---

title: Adding a custom database/build (dbkey)
description: Galaxy may have several reference genomes built-in, but you can also create your own.
area: analysis
box_type: tip
layout: faq
contributors: [shiltemann]

---

• Navigate to the History that contains your fasta for the reference genome

• Standarize the [fasta format]({% link faqs/galaxy/reference_genomes_custom_genomes.md %})

• In the top menu bar, go to User -> Preferences -> Manage Custom Builds

• Create a unique Name for your reference build {% if include.name %}{{ include.name }}{% endif %}

• Create a unique Database (dbkey) for your reference build {% if include.dbkey %}{{ include.dbkey }}{% endif %}

• Under Definition, select the option FASTA-file from history

• Under FASTA-file, select your fasta file {% if include.fasta %}{{ include.fasta }}{% endif %}

• Click the Save button