diff --git a/services/web/public/coffee/ide/pdf/controllers/PdfController.coffee b/services/web/public/coffee/ide/pdf/controllers/PdfController.coffee
index 79b770780a..b4968b7d8a 100644
--- a/services/web/public/coffee/ide/pdf/controllers/PdfController.coffee
+++ b/services/web/public/coffee/ide/pdf/controllers/PdfController.coffee
@@ -230,7 +230,7 @@ define [
 
 		buildPdfDownloadUrl = (pdfDownloadDomain, path)->
 			 #we only download builds from compiles server for security reasons
-			if pdfDownloadDomain? and path.indexOf("build") != -1
+			if pdfDownloadDomain? and path? and path.indexOf("build") != -1
 				return "#{pdfDownloadDomain}#{path}"
 			else
 				return path