diff --git a/api-generator/components/calendar.js b/api-generator/components/calendar.js
index 509913fd1..b3d53d216 100644
--- a/api-generator/components/calendar.js
+++ b/api-generator/components/calendar.js
@@ -245,6 +245,12 @@ const CalendarProps = [
         type: "any",
         default: "null",
         description: "Inline style of the component."
+    },
+    {
+        name: "keepInvalid",
+        type: "boolean",
+        default: "false",
+        description: "Keep invalid value when input blur."
     }
 ];
 
diff --git a/src/components/calendar/Calendar.d.ts b/src/components/calendar/Calendar.d.ts
index fed93b667..1f561db71 100755
--- a/src/components/calendar/Calendar.d.ts
+++ b/src/components/calendar/Calendar.d.ts
@@ -42,6 +42,7 @@ interface CalendarProps {
     inputClass?: string;
     style?: any;
     class?: string;
+    keepInvalid?: boolean;
 }
 
 declare class Calendar {