diff --git a/browser/components/preferences/dialogs/syncChooseWhatToSync.js b/browser/components/preferences/dialogs/syncChooseWhatToSync.js
index a38c2a235971f2fe470f9bee92fc9c1a6d9b8b15..564be3dabe01621a621ca586421cdb77e0220f8b 100644
--- a/browser/components/preferences/dialogs/syncChooseWhatToSync.js
+++ b/browser/components/preferences/dialogs/syncChooseWhatToSync.js
@@ -13,6 +13,7 @@ Preferences.addAll([
   { id: "services.sync.engine.passwords", type: "bool" },
   { id: "services.sync.engine.addresses", type: "bool" },
   { id: "services.sync.engine.creditcards", type: "bool" },
+  { id: "services.sync.engine.workspaces", type: "bool" },
 ]);
 
 let gSyncChooseWhatToSync = {