diff --git a/public/chainFiles/b36tob37.chain b/public/chainFiles/b36tob37.chain
index 93c99f7ec..f1de2b894 100644
--- a/public/chainFiles/b36tob37.chain
+++ b/public/chainFiles/b36tob37.chain
@@ -1,4 +1,4 @@
-chain	1574309	M	16571	+	0	16571	MT	16569	+	0	16569	1567
+chain	1574309	MT	16571	+	0	16571	MT	16569	+	0	16569	1567
 302	1	0
 8	1	0
 2796	0	1