diff --git a/config.yaml b/config.yaml
index ca6405ed84e68deaa17d87a8dff9ca32615ee89f..1f62c397eb2d15b6d499e8626804bd45f9526e1b 100644
--- a/config.yaml
+++ b/config.yaml
@@ -11,6 +11,8 @@
 #   
 # PATH to config file for SnakeMake
 # configfile_path: ''
+# PATH to MetaSnk_db where MetaSnk will download reference databases
+METASNKDB_DIR: '$HOME/MetaSnk_db'
 # Absolute PATH to folder where to find fastq files
 RAW_DIR: '/home/mticlla/Documents/Git_repositories/metagenomicsnake_testdata/data/raw'
 # Absolute PATH to folder where to place output files