diff --git a/README.md b/README.md
index f8998e56674df7805f1cfa784ed326a44fe91dad..7076161c134526741f622ba416fa01b10a37f1f9 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ Needs react-native >= 0.14.2
 - <b>pickerCancelBtnText</b> string, tool bar's cancel ben text
 - <b>pickerBtnStyle</b> textStylePropType, tool bar's btn style
 - <b>pickerToolBarStyle</b> viewStylePropType, tool bar's style
+- <b>pickerWidth</b> number, width of picker
 - <b>pickerHeight</b> number, height of picker
 - <b>showDuration</b> number, animation of picker
 - <b>pickerTitle</b> string, title of picker