diff --git a/genomes.yml b/genomes.yml
index 96d0c9c..cb54829 100644
--- a/genomes.yml
+++ b/genomes.yml
@@ -59,6 +59,26 @@ genomes:
       #- data_manager_kallisto_index_builder
     skiplist:
       - bfast
+  - dbkey: mm39
+    description: # set from UCSC
+    id: mm39
+    source: ucsc
+    doi:
+    version:
+    checksum:
+    blob:
+    indexers:
+      - data_manager_bowtie2_index_builder
+      - data_manager_bwa_mem_index_builder
+      - data_manager_twobit_builder
+      - data_manager_picard_index_builder
+      - data_manager_sam_fasta_index_builder
+      - data_manager_hisat2_index_builder
+      - data_manager_star_index_builder
+      #- data_manager_bowtie_index_builder
+      #- data_manager_kallisto_index_builder
+    skiplist:
+      - bfast
   - dbkey: Ecoli-O157-H7-Sakai
     description: "Escherichia coli O157-H7 Sakai"
     id: Ecoli-O157-H7-Sakai