diff --git a/chrome/content/zotero/preferences/preferences_sync.js b/chrome/content/zotero/preferences/preferences_sync.js
index 759a5b8e2..fd379f6b6 100644
--- a/chrome/content/zotero/preferences/preferences_sync.js
+++ b/chrome/content/zotero/preferences/preferences_sync.js
@@ -274,7 +274,7 @@ Zotero_Preferences.Sync = {
 			sep.hidden = true;
 		}
 		
-		var menulists = document.querySelectorAll('#storage-settings menulist.storage-personal');
+		var menulists = document.querySelectorAll('#storage-settings menulist.storage-mode');
 		for (let menulist of menulists) {
 			menulist.disabled = !enabled;
 		}
diff --git a/chrome/content/zotero/preferences/preferences_sync.xul b/chrome/content/zotero/preferences/preferences_sync.xul
index 88b2f426a..339528519 100644
--- a/chrome/content/zotero/preferences/preferences_sync.xul
+++ b/chrome/content/zotero/preferences/preferences_sync.xul
@@ -228,7 +228,7 @@
 
 							<hbox class="storage-settings-download-options" align="center">
 								<label value="&zotero.preferences.sync.fileSyncing.download;"/>
-								<menulist class="storage-personal" preference="pref-storage-downloadMode-personal" style="margin-left: 0">
+								<menulist class="storage-mode" preference="pref-storage-downloadMode-personal" style="margin-left: 0">
 									<menupopup>
 										<menuitem label="&zotero.preferences.sync.fileSyncing.download.onDemand;" value="on-demand"/>
 										<menuitem label="&zotero.preferences.sync.fileSyncing.download.atSyncTime;" value="on-sync"/>
@@ -245,7 +245,7 @@
 
 							<hbox class="storage-settings-download-options" align="center">
 								<label value="&zotero.preferences.sync.fileSyncing.download;"/>
-								<menulist class="storage-groups" preference="pref-storage-downloadMode-groups" style="margin-left: 0">
+								<menulist class="storage-mode" preference="pref-storage-downloadMode-groups" style="margin-left: 0">
 									<menupopup>
 										<menuitem label="&zotero.preferences.sync.fileSyncing.download.onDemand;" value="on-demand"/>
 										<menuitem label="&zotero.preferences.sync.fileSyncing.download.atSyncTime;" value="on-sync"/>