diff --git a/packages/material-ui/src/Autocomplete/autocompleteClasses.ts b/packages/material-ui/src/Autocomplete/autocompleteClasses.ts
index 2148c7b5e6613c..545da68d072b7d 100644
--- a/packages/material-ui/src/Autocomplete/autocompleteClasses.ts
+++ b/packages/material-ui/src/Autocomplete/autocompleteClasses.ts
@@ -1,55 +1,55 @@
 import { generateUtilityClass, generateUtilityClasses } from '@material-ui/unstyled';
 
 export interface AutocompleteClasses {
-    /** Styles applied to the root element. */
-    root: string;
-    /** Styles applied to the root element if `fullWidth={true}`. */
-    fullWidth: string;
-    /** Pseudo-class applied to the root element if focused. */
-    focused: string;
-    /** Styles applied to the tag elements, e.g. the chips. */
-    tag: string;
-    /** Styles applied to the tag elements, e.g. the chips if `size="small"`. */
-    tagSizeSmall: string;
-    /** Styles applied to the tag elements, e.g. the chips if `size="medium"`. */
-    tagSizeMedium: string;
-    /** Styles applied when the popup icon is rendered. */
-    hasPopupIcon: string;
-    /** Styles applied when the clear icon is rendered. */
-    hasClearIcon: string;
-    /** Styles applied to the Input element. */
-    inputRoot: string;
-    /** Styles applied to the input element. */
-    input: string;
-    /** Styles applied to the input element if tag focused. */
-    inputFocused: string;
-    /** Styles applied to the endAdornment element. */
-    endAdornment: string;
-    /** Styles applied to the clear indicator. */
-    clearIndicator: string;
-    /** Styles applied to the popup indicator. */
-    popupIndicator: string;
-    /** Styles applied to the popup indicator if the popup is open. */
-    popupIndicatorOpen: string;
-    /** Styles applied to the popper element. */
-    popper: string;
-    /** Styles applied to the popper element if `disablePortal={true}`. */
-    popperDisablePortal: string;
-    /** Styles applied to the Paper component. */
-    paper: string;
-    /** Styles applied to the listbox component. */
-    listbox: string;
-    /** Styles applied to the loading wrapper. */
-    loading: string;
-    /** Styles applied to the no option wrapper. */
-    noOptions: string;
-    /** Styles applied to the option elements. */
-    option: string;
-    /** Styles applied to the group's label elements. */
-    groupLabel: string;
-    /** Styles applied to the group's ul elements. */
-    groupUl: string;
-  }
+  /** Styles applied to the root element. */
+  root: string;
+  /** Styles applied to the root element if `fullWidth={true}`. */
+  fullWidth: string;
+  /** Pseudo-class applied to the root element if focused. */
+  focused: string;
+  /** Styles applied to the tag elements, e.g. the chips. */
+  tag: string;
+  /** Styles applied to the tag elements, e.g. the chips if `size="small"`. */
+  tagSizeSmall: string;
+  /** Styles applied to the tag elements, e.g. the chips if `size="medium"`. */
+  tagSizeMedium: string;
+  /** Styles applied when the popup icon is rendered. */
+  hasPopupIcon: string;
+  /** Styles applied when the clear icon is rendered. */
+  hasClearIcon: string;
+  /** Styles applied to the Input element. */
+  inputRoot: string;
+  /** Styles applied to the input element. */
+  input: string;
+  /** Styles applied to the input element if tag focused. */
+  inputFocused: string;
+  /** Styles applied to the endAdornment element. */
+  endAdornment: string;
+  /** Styles applied to the clear indicator. */
+  clearIndicator: string;
+  /** Styles applied to the popup indicator. */
+  popupIndicator: string;
+  /** Styles applied to the popup indicator if the popup is open. */
+  popupIndicatorOpen: string;
+  /** Styles applied to the popper element. */
+  popper: string;
+  /** Styles applied to the popper element if `disablePortal={true}`. */
+  popperDisablePortal: string;
+  /** Styles applied to the Paper component. */
+  paper: string;
+  /** Styles applied to the listbox component. */
+  listbox: string;
+  /** Styles applied to the loading wrapper. */
+  loading: string;
+  /** Styles applied to the no option wrapper. */
+  noOptions: string;
+  /** Styles applied to the option elements. */
+  option: string;
+  /** Styles applied to the group's label elements. */
+  groupLabel: string;
+  /** Styles applied to the group's ul elements. */
+  groupUl: string;
+}
 
 export type AutocompleteClassKey = keyof AutocompleteClasses;