diff --git a/src/cdk/accordion/public-api.ts b/src/cdk/accordion/public-api.ts
index 31c56b5d06bd..3e82f36a5b6e 100644
--- a/src/cdk/accordion/public-api.ts
+++ b/src/cdk/accordion/public-api.ts
@@ -7,5 +7,5 @@
  */
 
 export {CdkAccordionItem} from './accordion-item';
-export {CdkAccordion} from './accordion';
+export {CdkAccordion, CDK_ACCORDION} from './accordion';
 export * from './accordion-module';
diff --git a/tools/public_api_guard/cdk/accordion.md b/tools/public_api_guard/cdk/accordion.md
index 4d5148decd78..461b701c096a 100644
--- a/tools/public_api_guard/cdk/accordion.md
+++ b/tools/public_api_guard/cdk/accordion.md
@@ -14,6 +14,9 @@ import { SimpleChanges } from '@angular/core';
 import { Subject } from 'rxjs';
 import { UniqueSelectionDispatcher } from '@angular/cdk/collections';
 
+// @public
+export const CDK_ACCORDION: InjectionToken<CdkAccordion>;
+
 // @public
 export class CdkAccordion implements OnDestroy, OnChanges {
     closeAll(): void;