diff --git a/misc-scripts/xref_mapping/XrefMapper/BasicMapper.pm b/misc-scripts/xref_mapping/XrefMapper/BasicMapper.pm
index 015f2ad7426d67928395e4d1a88458db1c6e3e5e..89b8f1924dbcde8e81faff5f70851840e17453aa 100644
--- a/misc-scripts/xref_mapping/XrefMapper/BasicMapper.pm
+++ b/misc-scripts/xref_mapping/XrefMapper/BasicMapper.pm
@@ -2188,6 +2188,7 @@ sub transcript_display_xref_sources {
 	  'Genoscope_predicted_transcript',
 	  'Genoscope_predicted_gene',
 	  'Uniprot/SWISSPROT',
+	  'Uniprot/Varsplic',
 	  'RefSeq_peptide',
 	  'RefSeq_dna',
 	  'Uniprot/SPTREMBL',
@@ -2896,6 +2897,7 @@ sub gene_description_sources {
   return ("RefSeq_dna_predicted",
 	  "RefSeq_peptide_predicted",
 	  "Uniprot/SPTREMBL",
+	  "Uniprot/Varsplic",
 	  "RefSeq_dna",
 	  "RefSeq_peptide",
 	  "Uniprot/SWISSPROT",
diff --git a/misc-scripts/xref_mapping/XrefMapper/mus_musculus.pm b/misc-scripts/xref_mapping/XrefMapper/mus_musculus.pm
index d5cc373c8749f5d24ee247a24f4ddefa136e0c38..b27afceec8716bef84f23d48e720c4d556fafc4b 100644
--- a/misc-scripts/xref_mapping/XrefMapper/mus_musculus.pm
+++ b/misc-scripts/xref_mapping/XrefMapper/mus_musculus.pm
@@ -21,7 +21,7 @@ sub consortium {
 
 sub gene_description_sources {
 
-  return ("RefSeq_dna_predicted", "RefSeq_peptide_predicted", "Uniprot/SPTREMBL", "RefSeq_dna", "RefSeq_peptide", "Uniprot/SWISSPROT", "MarkerSymbol", "RFAM", "miRNA_Registry");
+  return ("RefSeq_dna_predicted", "RefSeq_peptide_predicted", "Uniprot/SPTREMBL", "RefSeq_dna", "RefSeq_peptide", "Uniprot/Varsplic", "Uniprot/SWISSPROT", "MarkerSymbol", "RFAM", "miRNA_Registry");
 
 }