diff --git a/lib/sequenceserver/database.rb b/lib/sequenceserver/database.rb
index 298a34e5..5d7b2703 100644
--- a/lib/sequenceserver/database.rb
+++ b/lib/sequenceserver/database.rb
@@ -85,7 +85,7 @@ def non_parse_seqids?
       when '5'
         (%w[nog nos pog pos] & extensions).length != 2
       when '4'
-        (%w[nog nsd nsi pod psd psi] & extensions).length != 3
+        (%w[nog nsd nsi pog psd psi] & extensions).length != 3
       end
     end