diff --git a/lib/src/utils/device_keys_list.dart b/lib/src/utils/device_keys_list.dart
index dfa0f78..c8430b7 100644
--- a/lib/src/utils/device_keys_list.dart
+++ b/lib/src/utils/device_keys_list.dart
@@ -237,7 +237,7 @@ abstract class SignableKey extends MatrixSignableKey {
     return false;
   }
 
-  Future<void> setVerified(bool newVerified, [bool sign = true]) {
+  void setVerified(bool newVerified, [bool sign = true]) {
     _verified = newVerified;
     if (newVerified &&
         sign &&
@@ -246,7 +246,6 @@ abstract class SignableKey extends MatrixSignableKey {
       // sign the key!
       client.encryption.crossSigning.sign([this]);
     }
-    return Future.value();
   }
 
   Future<void> setBlocked(bool newBlocked);