diff --git a/chrome/content/zotero/xpcom/zotero.js b/chrome/content/zotero/xpcom/zotero.js
index 5dbccbbef9..3f199e4369 100644
--- a/chrome/content/zotero/xpcom/zotero.js
+++ b/chrome/content/zotero/xpcom/zotero.js
@@ -229,11 +229,10 @@ Services.scriptloader.loadSubScript("resource://zotero/polyfill.js");
 		this.isClient = true;
 		this.isStandalone = true;
 		
-		Zotero.version = Services.appinfo.version;
-		Zotero.isDevBuild = Zotero.version.includes('beta')
-			|| Zotero.version.includes('dev')
-			|| Zotero.version.includes('SOURCE');
-		Zotero.isSourceBuild = Zotero.version.includes('SOURCE');
+		this.version = Services.appinfo.version;
+		this.isBetaBuild = Zotero.version.includes('-beta');
+		this.isDevBuild = Zotero.version.includes('-dev');
+		this.isSourceBuild = Zotero.version.includes('SOURCE');
 		
 		// OS platform
 		var win = Components.classes["@mozilla.org/appshell/appShellService;1"]
diff --git a/chrome/content/zotero/zoteroPane.js b/chrome/content/zotero/zoteroPane.js
index e78fb52777..2bd6760f03 100644
--- a/chrome/content/zotero/zoteroPane.js
+++ b/chrome/content/zotero/zoteroPane.js
@@ -511,7 +511,7 @@ var ZoteroPane = new function()
 		// Show warning in toolbar for 'dev' channel builds and troubleshooting mode
 		try {
 			let afterElement = 'zotero-tb-tabs-menu';
-			let isDevBuild = Zotero.version.includes('-dev');
+			let isDevBuild = Zotero.isDevBuild;
 			let isSafeMode = Services.appinfo.inSafeMode;
 			// Uncomment to test
 			//isDevBuild = true;