diff --git a/lib/selectors/socket-selectors.js b/lib/selectors/socket-selectors.js
--- a/lib/selectors/socket-selectors.js
+++ b/lib/selectors/socket-selectors.js
@@ -69,7 +69,7 @@
 ) => (
   calendarActive: boolean,
   oneTimeKeyGenerator: ?OneTimeKeyGenerator,
-  getSignedIdentityKeysBlob: ?() => Promise<SignedIdentityKeysBlob>,
+  getSignedIdentityKeysBlob: () => Promise<SignedIdentityKeysBlob>,
   getInitialNotificationsEncryptedMessage: ?() => Promise<string>,
   serverRequests: $ReadOnlyArray<ClientServerRequest>,
 ) => Promise<$ReadOnlyArray<ClientClientResponse>> = createSelector(
@@ -82,7 +82,7 @@
     return async (
       calendarActive: boolean,
       oneTimeKeyGenerator: ?OneTimeKeyGenerator,
-      getSignedIdentityKeysBlob: ?() => Promise<SignedIdentityKeysBlob>,
+      getSignedIdentityKeysBlob: () => Promise<SignedIdentityKeysBlob>,
       getInitialNotificationsEncryptedMessage: ?() => Promise<string>,
       serverRequests: $ReadOnlyArray<ClientServerRequest>,
     ): Promise<$ReadOnlyArray<ClientClientResponse>> => {
@@ -167,8 +167,7 @@
             keys,
           });
         } else if (
-          serverRequest.type === serverRequestTypes.SIGNED_IDENTITY_KEYS_BLOB &&
-          getSignedIdentityKeysBlob
+          serverRequest.type === serverRequestTypes.SIGNED_IDENTITY_KEYS_BLOB
         ) {
           const signedIdentityKeysBlob = await getSignedIdentityKeysBlob();
           clientResponses.push({
diff --git a/native/selectors/socket-selectors.js b/native/selectors/socket-selectors.js
--- a/native/selectors/socket-selectors.js
+++ b/native/selectors/socket-selectors.js
@@ -92,7 +92,7 @@
       getClientResponsesFunc: (
         calendarActive: boolean,
         oneTimeKeyGenerator: ?OneTimeKeyGenerator,
-        getSignedIdentityKeysBlob: ?() => Promise<SignedIdentityKeysBlob>,
+        getSignedIdentityKeysBlob: () => Promise<SignedIdentityKeysBlob>,
         getInitialNotificationsEncryptedMessage: ?() => Promise<string>,
         serverRequests: $ReadOnlyArray<ClientServerRequest>,
       ) => Promise<$ReadOnlyArray<ClientClientResponse>>,