diff --git a/blxGff3Parser.c b/blxGff3Parser.c
index 5610143e9f8665549d73238541cb6950df64b25d..ee645d6a7c4b4c6974fe8f975b068c5cedd12cf4 100644
--- a/blxGff3Parser.c
+++ b/blxGff3Parser.c
@@ -129,6 +129,7 @@ GSList* blxCreateSupportedGffTypeList()
   addGffType(&supportedTypes, "intron", "SO:0000188", BLXMSP_INTRON);
   
   addGffType(&supportedTypes, "SNP", "SO:0000694", BLXMSP_VARIATION);
+  addGffType(&supportedTypes, "copy_number_variation", "SO:0001019", BLXMSP_VARIATION);
   addGffType(&supportedTypes, "substitution", "SO:1000002", BLXMSP_VARIATION);
   addGffType(&supportedTypes, "insertion", "SO:0000694", BLXMSP_VARIATION);
   addGffType(&supportedTypes, "deletion", "SO:0000694", BLXMSP_VARIATION);