diff --git a/cctbx_website/html_files/doc_models_hierarchy.html b/cctbx_website/html_files/doc_models_hierarchy.html
index 8f5289406a..0da45727a1 100644
--- a/cctbx_website/html_files/doc_models_hierarchy.html
+++ b/cctbx_website/html_files/doc_models_hierarchy.html
@@ -88,7 +88,7 @@ <h3 class="mt-3">Quick overview</h3>
 </code></pre>
 <p>We also wrote the model out using the data manager and obtained the
 actual file name written.  This last step is necessary because a model that
-does not fit in PDB format will be written out as mmCIF with the suffix .cif. 
+does not fit in PDB format will be written out as mmCIF with the suffix .cif.
 </p>
 
 <p>It is possible to get a <code>pdb_hierarchy()</code> object directly:</p>