diff --git a/misc-scripts/xref_mapping/xref_config.ini b/misc-scripts/xref_mapping/xref_config.ini
index c1c25f676813934eb152d126e9f656b092e09513..97b91a6f7caab2405fd9d7537c3788c587e2a3b7 100644
--- a/misc-scripts/xref_mapping/xref_config.ini
+++ b/misc-scripts/xref_mapping/xref_config.ini
@@ -1089,9 +1089,9 @@ parser          = MIMParser
 release_uri     = 
 data_uri        = ftp://ftp.ncbi.nih.gov/repository/OMIM/omim.txt.Z
 
-[source MarkerSymbol::mus_musculus]
+[source MGI::mus_musculus]
 # Used by mus_musculus
-name            = MarkerSymbol
+name            = MGI
 download        = Y
 order           = 30
 priority        = 1
@@ -2687,7 +2687,7 @@ source          = IMGT/GENE_DB::mus_musculus
 source          = IPI::mus_musculus
 source          = Illumina_V1::mus_musculus
 source          = Interpro::MULTI
-source          = MarkerSymbol::mus_musculus
+source          = MGI::mus_musculus
 source          = OTTT::MULTI
 source          = RefSeq_dna::mus_musculus
 source          = RefSeq_peptide::mus_musculus