diff --git a/chrome/content/zotero/zoteroPane.js b/chrome/content/zotero/zoteroPane.js
index c3954cde5..aee8be734 100644
--- a/chrome/content/zotero/zoteroPane.js
+++ b/chrome/content/zotero/zoteroPane.js
@@ -4053,7 +4053,7 @@ var ZoteroPane = new function()
 	});
 	
 	
-	this.viewAttachment = Zotero.Promise.coroutine(function* (itemIDs, event, noLocateOnMissing, forceExternalViewer) {
+	this.viewAttachment = Zotero.serial(Zotero.Promise.coroutine(function* (itemIDs, event, noLocateOnMissing, forceExternalViewer) {
 		// If view isn't editable, don't show Locate button, since the updated
 		// path couldn't be sent back up
 		if (!this.collectionsView.editable) {
@@ -4138,14 +4138,13 @@ var ZoteroPane = new function()
 				// check if unchanged?
 				// maybe not necessary, since we'll get an error if there's an error
 				
-				
 				Zotero.Notifier.trigger('redraw', 'item', []);
-				Zotero.debug('downloaded');
-				Zotero.debug(downloadedItem.id);
-				return ZoteroPane_Local.viewAttachment(downloadedItem.id, event, false, forceExternalViewer);
+				setTimeout(() => {
+					ZoteroPane_Local.viewAttachment(downloadedItem.id, event, false, forceExternalViewer);
+				});
 			}
 		}
-	});
+	}));
 	
 	
 	/**