diff --git a/Scripts/Functions/Help/help_updateOutputFiles.sh b/Scripts/Functions/Help/help_updateOutputFiles.sh
index 09e00cf..c81f132 100755
--- a/Scripts/Functions/Help/help_updateOutputFiles.sh
+++ b/Scripts/Functions/Help/help_updateOutputFiles.sh
@@ -36,6 +36,7 @@ function help_updateOutputFiles {
     ${FUNCNAM}_updateOutputFileInfo
     ${FUNCNAM}_updateOutputFileXhtml
     ${FUNCNAM}_updateOutputFileXml
+    ${FUNCNAM}_updateOutputFileDocbook
     ${FUNCNAM}_updateOutputFilePdf
     ${FUNCNAM}_updateOutputFilePlaintext