diff --git a/website/naming.html b/website/naming.html
index 0973644a..516f3e3e 100644
--- a/website/naming.html
+++ b/website/naming.html
@@ -226,12 +226,12 @@
 						</tr>						
 						<tr>
 							<td>pi</td>
-							<td>part index</td>
+							<td>movie part index</td>
 							<td>1</td>
 						</tr>
 						<tr>
 							<td>pn</td>
-							<td>number of parts</td>
+							<td>number of movie parts</td>
 							<td>2</td>
 						</tr>
 						<tr>