diff --git a/mercurial/templates/monoblue/error.tmpl b/mercurial/templates/monoblue/error.tmpl
--- a/mercurial/templates/monoblue/error.tmpl
+++ b/mercurial/templates/monoblue/error.tmpl
@@ -18,7 +18,7 @@
         </form>
 
         <ul class="page-nav">
-            <li class="current">summary</li>
+            <li><a href="{url|urlescape}summary{sessionvars%urlparameter}">summary</a></li>
             <li><a href="{url|urlescape}shortlog{sessionvars%urlparameter}">shortlog</a></li>
             <li><a href="{url|urlescape}log{sessionvars%urlparameter}">changelog</a></li>
             <li><a href="{url|urlescape}graph{sessionvars%urlparameter}">graph</a></li>
diff --git a/mercurial/templates/monoblue/notfound.tmpl b/mercurial/templates/monoblue/notfound.tmpl
--- a/mercurial/templates/monoblue/notfound.tmpl
+++ b/mercurial/templates/monoblue/notfound.tmpl
@@ -18,7 +18,7 @@
         </form>
 
         <ul class="page-nav">
-            <li class="current">summary</li>
+            <li><a href="{url|urlescape}summary{sessionvars%urlparameter}">summary</a></li>
             <li><a href="{url|urlescape}shortlog{sessionvars%urlparameter}">shortlog</a></li>
             <li><a href="{url|urlescape}log{sessionvars%urlparameter}">changelog</a></li>
             <li><a href="{url|urlescape}graph{sessionvars%urlparameter}">graph</a></li>