diff --git a/packages/mui-system/src/index.d.ts b/packages/mui-system/src/index.d.ts
index 66f2a1ae612d31..7f24359229a63d 100644
--- a/packages/mui-system/src/index.d.ts
+++ b/packages/mui-system/src/index.d.ts
@@ -41,7 +41,6 @@ export function breakpoints<Props, Breakpoints extends string = DefaultBreakPoin
   styleFunction: StyleFunction<Props>,
 ): StyleFunction<Partial<Record<Breakpoints, Props>> & Props>;
 
-
 export function compose<T extends Array<StyleFunction<any>>>(...args: T): ComposedStyleFunction<T>;
 
 export type DisplayProps = PropsFor<typeof display>;