diff --git a/docs/progress.html b/docs/progress.html
index 752f0122..83722e62 100644
--- a/docs/progress.html
+++ b/docs/progress.html
@@ -80,7 +80,7 @@ thead th {text-align:left;padding:0.1em;background-color:#EEE;}
     <tr><td>DEL, INS</td><td>Link to explanation why it changed</td></tr>
 <tr><td>href</td><td>A</td><td>-</td></tr>
 <tr><td>longdesc</td><td>IMG</td><td>-</td></tr>
-<tr class="required imp-partial"><td>src</td><td>IMG</td><td>Required</td></tr>
+<tr class="required impl-partial"><td>src</td><td>IMG</td><td>Required</td></tr>
 </tbody>
 
 <tbody>