diff --git a/mysql-test/r/myisam.result b/mysql-test/r/myisam.result
index bf57b6e1006..553a9f36690 100644
--- a/mysql-test/r/myisam.result
+++ b/mysql-test/r/myisam.result
@@ -1831,6 +1831,28 @@ id	ref
 3	2
 4	5
 DROP TABLE t1, t2;
+CREATE TABLE t1 (a INT) ENGINE=MyISAM CHECKSUM=1 ROW_FORMAT=DYNAMIC;
+INSERT INTO t1 VALUES (0);
+UPDATE t1 SET a=1;
+SELECT a FROM t1;
+a
+1
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+INSERT INTO t1 VALUES (0), (5), (4), (2);
+UPDATE t1 SET a=2;
+SELECT a FROM t1;
+a
+2
+2
+2
+2
+2
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+DROP TABLE t1;
 End of 5.0 tests
 create table t1 (a int not null, key `a` (a) key_block_size=1024);
 show create table t1;
diff --git a/mysql-test/t/myisam.test b/mysql-test/t/myisam.test
index 21ffa0683b6..f8d9f15fab1 100644
--- a/mysql-test/t/myisam.test
+++ b/mysql-test/t/myisam.test
@@ -1169,6 +1169,21 @@ SELECT * FROM t1;
 
 DROP TABLE t1, t2;
 
+
+#
+# Bug#37310: 'on update CURRENT_TIMESTAMP' option crashes the table
+#
+CREATE TABLE t1 (a INT) ENGINE=MyISAM CHECKSUM=1 ROW_FORMAT=DYNAMIC;
+INSERT INTO t1 VALUES (0);
+UPDATE t1 SET a=1;
+SELECT a FROM t1;
+CHECK TABLE t1;
+INSERT INTO t1 VALUES (0), (5), (4), (2);
+UPDATE t1 SET a=2;
+SELECT a FROM t1;
+CHECK TABLE t1;
+DROP TABLE t1; 
+
 --echo End of 5.0 tests
 
 
diff --git a/storage/myisam/mi_create.c b/storage/myisam/mi_create.c
index 2784861f48a..448e1b3c6f8 100644
--- a/storage/myisam/mi_create.c
+++ b/storage/myisam/mi_create.c
@@ -196,7 +196,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
   packed=(packed+7)/8;
   if (pack_reclength != INT_MAX32)
     pack_reclength+= reclength+packed +
-      test(test_all_bits(options, HA_OPTION_CHECKSUM | HA_PACK_RECORD));
+      test(test_all_bits(options, HA_OPTION_CHECKSUM | HA_OPTION_PACK_RECORD));
   min_pack_length+=packed;
 
   if (!ci->data_file_length && ci->max_rows)
diff --git a/storage/myisam/rt_index.c b/storage/myisam/rt_index.c
index 25f9d7c19e4..0b472f4fb0e 100644
--- a/storage/myisam/rt_index.c
+++ b/storage/myisam/rt_index.c
@@ -389,7 +389,7 @@ int rtree_get_first(MI_INFO *info, uint keynr, uint key_length)
   info->rtree_recursion_depth = -1;
   info->buff_used = 1;
   
-  return rtree_get_req(info, &keyinfo[keynr], key_length, root, 0);
+  return rtree_get_req(info, keyinfo, key_length, root, 0);
 }
 
 
@@ -436,7 +436,7 @@ int rtree_get_next(MI_INFO *info, uint keynr, uint key_length)
       return -1;
     }
   
-    return rtree_get_req(info, &keyinfo[keynr], key_length, root, 0);
+    return rtree_get_req(info, keyinfo, key_length, root, 0);
   }
 }