diff --git a/doc/src/sgml/mvcc.sgml b/doc/src/sgml/mvcc.sgml
index 96e160974b..85221ae454 100644
--- a/doc/src/sgml/mvcc.sgml
+++ b/doc/src/sgml/mvcc.sgml
@@ -101,7 +101,7 @@
- The phenomena which are prohibited are various levels are:
+ The phenomena which are prohibited at various levels are:
@@ -155,7 +155,7 @@
- SQL Transaction Isolation Levels
+ Standard SQL Transaction Isolation Levels