diff --git a/test/data/invalid.fasta b/test/data/invalid.fasta
index 2dbcf5b2..7aea2c99 100644
--- a/test/data/invalid.fasta
+++ b/test/data/invalid.fasta
@@ -5,4 +5,6 @@ atgc234
 >BAD_2
 actgnfji
 >BAD_3
-//
\ No newline at end of file
+actgn//
+>BAD_4
+actgn-
\ No newline at end of file