diff --git a/packages/mui-material/src/OverridableComponent.d.ts b/packages/mui-material/src/OverridableComponent.d.ts
index 210fe98c7b43d3..143a9c534b033c 100644
--- a/packages/mui-material/src/OverridableComponent.d.ts
+++ b/packages/mui-material/src/OverridableComponent.d.ts
@@ -21,7 +21,7 @@ export interface OverridableComponent<M extends OverridableTypeMap> {
       component: C;
     } & OverrideProps<M, C>,
   ): JSX.Element | null;
-  (props: DefaultComponentProps<M>): JSX.Element;
+  (props: DefaultComponentProps<M>): JSX.Element | null;
 }
 
 /**
diff --git a/packages/mui-types/index.d.ts b/packages/mui-types/index.d.ts
index 02e469dfcc26af..159d5ff5839e00 100644
--- a/packages/mui-types/index.d.ts
+++ b/packages/mui-types/index.d.ts
@@ -105,7 +105,7 @@ export interface OverridableComponent<M extends OverridableTypeMap> {
       component: C;
     } & OverrideProps<M, C>,
   ): JSX.Element | null;
-  (props: DefaultComponentProps<M>): JSX.Element;
+  (props: DefaultComponentProps<M>): JSX.Element | null;
   propTypes?: any;
 }