diff --git a/src/matrix/e2ee/olm/Encryption.js b/src/matrix/e2ee/olm/Encryption.js
index e529fa13..c8961656 100644
--- a/src/matrix/e2ee/olm/Encryption.js
+++ b/src/matrix/e2ee/olm/Encryption.js
@@ -145,6 +145,7 @@ export class Encryption {
             for (const target of newEncryptionTargets) {
                 target.dispose();
             }
+            throw err;
         }
         return newEncryptionTargets;
     }