diff --git a/docs/components/CustomTheme.tsx b/docs/components/CustomTheme.tsx
index 251771eb..b614c1c2 100644
--- a/docs/components/CustomTheme.tsx
+++ b/docs/components/CustomTheme.tsx
@@ -10,7 +10,7 @@ import type { Theme, ThemeColorObj } from '../../src';
 
 declare module '../../src/index' {
 	// in external projects, the module is @zextras/carbonio-design-system
-	export interface Palette {
+	interface Palette {
 		additional: ThemeColorObj;
 		green: ThemeColorObj;
 	}
diff --git a/docs/theme/theming.mdx b/docs/theme/theming.mdx
index 5a68158e..e9387647 100644
--- a/docs/theme/theming.mdx
+++ b/docs/theme/theming.mdx
@@ -28,10 +28,10 @@ declare the module '@zextras/carbonio-design-system', extending the appropriate
 import type { ThemeColorObj } from '@zextras/carbonio-design-system';
 
 declare module '@zextras/carbonio-design-system' {
-  export interface Theme {
+  interface Theme {
 		additionalThemeProperty: unknown; // give the proper type
   }
-  export interface Palette {
+  interface Palette {
     additionalColor: ThemeColorObj;
   }
 }