diff --git a/packages/help-center/src/components/index.d.ts b/packages/help-center/src/components/index.d.ts
index c1a6c2d3be8ad..71ab22ba176a9 100644
--- a/packages/help-center/src/components/index.d.ts
+++ b/packages/help-center/src/components/index.d.ts
@@ -184,3 +184,13 @@ declare module '*.svg' {
 	const content: string;
 	export default content;
 }
+
+// Can be removed after experiment is removed - shouldUseHelpCenterExperience
+declare module 'calypso/server/lib/logger';
+
+// Can be removed after experiment is removed - shouldUseHelpCenterExperience
+declare module 'calypso/lib/explat' {
+	export const useExperiment: (
+		experimentName: string
+	) => [ boolean, { variationName: string } | undefined ];
+}