diff --git a/sql/table.cc b/sql/table.cc
index aff1e6d11f6..dab2f978327 100644
--- a/sql/table.cc
+++ b/sql/table.cc
@@ -373,6 +373,8 @@ int openfrm(const char *name, const char *alias, uint db_stat, uint prgflag,
   memcpy(comment_pos, disk_buff+read_length-com_length, com_length);
 
   fix_type_pointers(&int_array,&outparam->fieldnames,1,&names);
+  if (outparam->fieldnames.count != outparam->fields)
+    goto err_not_open;
   fix_type_pointers(&int_array,outparam->intervals,interval_count,
 		    &names);