diff --git a/chrome/content/zotero/xpcom/sync.js b/chrome/content/zotero/xpcom/sync.js
index a096d8f7f7..07c90fb469 100644
--- a/chrome/content/zotero/xpcom/sync.js
+++ b/chrome/content/zotero/xpcom/sync.js
@@ -2033,7 +2033,7 @@ Zotero.Sync.Server = new function () {
 		if (!wait || isNaN(wait)) {
 			wait = 5000;
 		}
-		Zotero.debug(msg + " — waiting " + wait + "ms before next check");
+		Zotero.debug(msg + " -- waiting " + wait + "ms before next check");
 		_checkTimer = setTimeout(function () { callback(mode); }, wait);
 		return true;
 	}