diff --git a/chrome/content/zotero/xpcom/data/tags.js b/chrome/content/zotero/xpcom/data/tags.js
index 0aee571025..565f6a4827 100644
--- a/chrome/content/zotero/xpcom/data/tags.js
+++ b/chrome/content/zotero/xpcom/data/tags.js
@@ -720,7 +720,7 @@ Zotero.Tags = new function() {
 	});
 	
 	
-	this.toggleItemsListTags = Zotero.Promise.coroutine(function* (libraryID, items, tagName) {
+	this.toggleItemsListTags = async function (items, tagName) {
 		if (!items.length) {
 			return;
 		}
@@ -754,7 +754,7 @@ Zotero.Tags = new function() {
 				}
 			}
 		}.bind(this));
-	});
+	};
 	
 	
 	/**
diff --git a/chrome/content/zotero/xpcom/itemTreeView.js b/chrome/content/zotero/xpcom/itemTreeView.js
index 984880f66b..6b24925013 100644
--- a/chrome/content/zotero/xpcom/itemTreeView.js
+++ b/chrome/content/zotero/xpcom/itemTreeView.js
@@ -207,7 +207,7 @@ Zotero.ItemTreeView.prototype.setTree = async function (treebox) {
 					}
 					
 					var items = self.getSelectedItems();
-					yield Zotero.Tags.toggleItemsListTags(libraryID, items, colorData.name);
+					yield Zotero.Tags.toggleItemsListTags(items, colorData.name);
 					return;
 				}