diff --git a/lib/ads/server_side_ad_manager.js b/lib/ads/server_side_ad_manager.js
index de8bbd16d86..18f175fae20 100644
--- a/lib/ads/server_side_ad_manager.js
+++ b/lib/ads/server_side_ad_manager.js
@@ -226,6 +226,14 @@ shaka.ads.ServerSideAdManager = class {
     }
   }
 
+  /** @override */
+  release() {
+    this.stop();
+    if (this.eventManager_) {
+      this.eventManager_.release();
+    }
+  }
+
   /**
    * @param {string} type
    * @param {Uint8Array|string} data