diff --git a/gui/help/buildhelp.bat b/gui/help/buildhelp.bat
index c7bf58dad..5fa5c68d6 100644
--- a/gui/help/buildhelp.bat
+++ b/gui/help/buildhelp.bat
@@ -1,4 +1,5 @@
-del online-help.qhc
-del online-help.qch
+@echo off
+if exist online-help.qhc del online-help.qhc
+if exist online-help.qch del online-help.qch
 
-qcollectiongenerator online-help.qhcp -o online-help.qhc
\ No newline at end of file
+qcollectiongenerator online-help.qhcp -o online-help.qhc