diff --git a/detectors/trna/bin/go_trna.sh b/detectors/trna/bin/go_trna.sh
index 66964d0..abe415a 100755
--- a/detectors/trna/bin/go_trna.sh
+++ b/detectors/trna/bin/go_trna.sh
@@ -32,7 +32,7 @@ pushTmpDir ORG.trna
 
 	TRNA=$(basename ${QUERY})
 	
-	aragorn -i -w -seq ${QUERY} | \
+	aragorn -i -w -seq -gcbact ${QUERY} | \
 		${AwkCmd} -f ${PROG_DIR}/../lib/aragorn_wrapper.awk