diff --git a/specs/STX_Example_Spec.rst b/specs/STX_Example_Spec.rst
index 38dfc5f..e0cf23a 100644
--- a/specs/STX_Example_Spec.rst
+++ b/specs/STX_Example_Spec.rst
@@ -36,7 +36,8 @@ Some notes about using this template:
 
 * The filename in the git repository should include the StoryBoard number and name,
   for example a Story at https://storyboard.openstack.org/#!/story/1234567
-  should be named 1234567-feature-name.rst
+  should be named [category]_1234567-feature-name.rst (refer to instructions.rst
+  for guidelines on a suitable category name)
 
 * Please do not delete any of the sections in this template.  If you have
   nothing to say for a whole section, just write: None
diff --git a/specs/instructions.rst b/specs/instructions.rst
index 77c79b8..e2ae713 100644
--- a/specs/instructions.rst
+++ b/specs/instructions.rst
@@ -43,7 +43,7 @@ something that doesn't make sense.
 
 Document names should follow a pattern as follows::
 
-  [category]_title.rst
+  [category]_[storyboard#]_title.rst
 
 Use the following guidelines to determine the category to use for a document: