diff --git a/README.md b/README.md
index 73dc171..1bd1d3d 100644
--- a/README.md
+++ b/README.md
@@ -80,7 +80,7 @@ When `pg_ivm` is installed, the following objects are created.
 
 ### Functions
 
-#### create_imm
+#### create_immv
 
 Use `create_immv` function to create IMMV.
 ```