diff --git a/Scripts/Functions/Help/Texinfo/Templates/manual.conf b/Scripts/Functions/Help/Texinfo/Templates/manual.conf
index fefcc74..0d5ea92 100755
--- a/Scripts/Functions/Help/Texinfo/Templates/manual.conf
+++ b/Scripts/Functions/Help/Texinfo/Templates/manual.conf
@@ -7,6 +7,11 @@
 
 [main]
 
+# Specify documentation backend used by documentation manual. This is
+# the format used to write documentation manual source files. Possible
+# values to this options are `texinfo'.
+manual_backend = "texinfo"
+
 # Specify title style used by sections inside the manual.  Possible
 # values to this option are `cap-each-word' to capitalize each word in
 # the section title, `cap-first-word' to capitalize the first word in