diff --git a/etc/log4j.properties b/etc/log4j.properties
index 1f588d379867cd5a48f2e6746266497742270ffc..cbd341c0a9c219b79616c4249bc34ae966669114 100644
--- a/etc/log4j.properties
+++ b/etc/log4j.properties
@@ -33,6 +33,7 @@ log4j.logger.uk.ac.sanger.artemis.components.database.DatabaseJPanel=DEBUG, R
 log4j.logger.uk.ac.sanger.artemis.components.alignment.LookSeqPanel=DEBUG, R
 log4j.logger.uk.ac.sanger.artemis.components.variant=DEBUG, R
 log4j.logger.uk.ac.sanger.artemis.io.ReadAndWriteEntry=DEBUG, R
+log4j.logger.uk.ac.sanger.artemis.io.GFFStreamFeature=DEBUG, R
 log4j.logger.uk.ac.sanger.artemis.util.FTPSeekableStream=DEBUG, R
 
 #log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUG, stdout, R