diff --git a/Examples/one-section.nsi b/Examples/one-section.nsi
index bd15c7bd..b970495c 100644
--- a/Examples/one-section.nsi
+++ b/Examples/one-section.nsi
@@ -1,3 +1,15 @@
+# This example demonstrates how to control section selection
+# It allows only one of the four optional section to be selected at any given time
+#
+# Please note that the initial value will not be what you expect it to be if you are
+# are using InstType because InstType is taken into consideration after the .onInit,
+# where the initial state is set, executes.
+# To use this code with InstType you will either have to specify you first InstType
+# to match the initial value you set in .onInit (only StrCpy $1 ${sec1} is important
+# in this case because the other set the section and that will be done by InstType),
+# or set the initial section selection from .onSelChange when it is called for the
+# first time.
+
 Name example
 OutFile one-section.exe