diff --git a/packages/react-bootstrap-table2-filter/README.md b/packages/react-bootstrap-table2-filter/README.md
index 0af54da..6cf47a0 100644
--- a/packages/react-bootstrap-table2-filter/README.md
+++ b/packages/react-bootstrap-table2-filter/README.md
@@ -131,7 +131,7 @@ const columns = [..., {
 Numner filter is same as other filter, you can custom the number filter via `numberFilter` factory function:
 
 ```js
-import filterFactory, { selectFilter, Comparator } from 'react-bootstrap-table2-filter';
+import filterFactory, { selectFilter, Comparator, numberFilter } from 'react-bootstrap-table2-filter';
 // omit...
 
 const numberFilter = numberFilter({
@@ -240,4 +240,4 @@ Following properties is valid in `FILTER_TYPES`:
 * TEXT
 * SELECT
 * NUMBER
-* DATE
\ No newline at end of file
+* DATE