diff --git a/types/react-maskedinput/react-maskedinput-tests.tsx b/types/react-maskedinput/react-maskedinput-tests.tsx
index 4eaba73de1..3ab979fc81 100644
--- a/types/react-maskedinput/react-maskedinput-tests.tsx
+++ b/types/react-maskedinput/react-maskedinput-tests.tsx
@@ -6,7 +6,7 @@ class Test extends React.Component {
         return (
             <MaskedInput mask="111"
                          placeholderChar="X"
-                         formatCharacter={
+                         formatCharacters={
                             {
                                 a: {
                                     validate: (char: string) => char,