diff --git a/test/test_issue_75_range_parameter.py b/test/test_issue_75_range_parameter.py
index 62871ec..511d965 100644
--- a/test/test_issue_75_range_parameter.py
+++ b/test/test_issue_75_range_parameter.py
@@ -1,6 +1,18 @@
 """This tests the range parameter for ics file.
 
 see https://github.com/niccokunzmann/python-recurring-ical-events/issues/75
+
+Description:  This parameter can be specified on a property that
+    specifies a recurrence identifier.  The parameter specifies the
+    effective range of recurrence instances that is specified by the
+    property.  The effective range is from the recurrence identifier
+    specified by the property.  If this parameter is not specified on
+    an allowed property, then the default range is the single instance
+    specified by the recurrence identifier value of the property.  The
+    parameter value can only be "THISANDFUTURE" to indicate a range
+    defined by the recurrence identifier and all subsequent instances.
+    The value "THISANDPRIOR" is deprecated by this revision of
+    iCalendar and MUST NOT be generated by applications.
 """
 
 import pytest