diff --git a/docs/config_duplicates.html b/docs/config_duplicates.html
index 5fb3092e1..17474f240 100644
--- a/docs/config_duplicates.html
+++ b/docs/config_duplicates.html
@@ -78,7 +78,7 @@ Checkstyle plugins for duplicate code detection:
           <td>Simian</td>
           <td>Very high</td>
           <td>Low</td>
-          <td>unknown</td>
+          <td>Possible but very unlikely</td>
           <td>many languages, including Java and C/C++/C#</td>
           <td>Limited support</td>
         </tr>