diff --git a/server/app/tsv_formatters/variant_tsv_formatter.rb b/server/app/tsv_formatters/variant_tsv_formatter.rb
index dd33e8c01..70fadbf5a 100644
--- a/server/app/tsv_formatters/variant_tsv_formatter.rb
+++ b/server/app/tsv_formatters/variant_tsv_formatter.rb
@@ -146,7 +146,7 @@ def self.row_from_object(variant)
     when Variants::FusionVariant
       create_fusion_row(variant)
     else
-      raise StandardError.new("Unkown variant type for TSV export: #{variant.class}")
+      raise StandardError.new("Unknown variant type for TSV export: #{variant.class}")
     end
 
     shared_cols + variant_cols