diff --git a/material-ui/material-ui.d.ts b/material-ui/material-ui.d.ts
index 549f3e334..f11864c64 100644
--- a/material-ui/material-ui.d.ts
+++ b/material-ui/material-ui.d.ts
@@ -317,7 +317,7 @@ declare namespace __MaterialUI {
             onTouchTap?: React.TouchEventHandler;
             shouldDisableDate?: (day: Date) => boolean;
             showYearSelector?: boolean;
-			style?: React.CSSProperties;
+            style?: React.CSSProperties;
             textFieldStyle?: React.CSSProperties;
         }
         export class DatePicker extends React.Component<DatePickerProps, {}> {