diff --git a/README.md b/README.md
index cbe6402..b0b0264 100644
--- a/README.md
+++ b/README.md
@@ -257,7 +257,7 @@ If some base tables have row level security policy, rows that are not visible to
 
 IVM is effective when we want to keep an IMMV up-to-date and small fraction of a base table is modified infrequently.  Due to the overhead of immediate maintenance, IVM is not effective when a base table is modified frequently.  Also, when a large part of a base table is modified or large data is inserted into a base table, IVM is not effective and the cost of maintenance can be larger than refresh from scratch.
 
-In such situation, we can use `refesh_immv` function with `with_data = falase` to disable immediate maintenance before modifying a base table. After a base table modification, call `refresh_immv`with `with_data = true` to refresh the view data and enable immediate maintenance.
+In such situation, we can use `refesh_immv` function with `with_data = false` to disable immediate maintenance before modifying a base table. After a base table modification, call `refresh_immv`with `with_data = true` to refresh the view data and enable immediate maintenance.
 
 ## Authors
 IVM Development Group