diff --git a/src/root/jobset-channels-tab.tt b/src/root/jobset-channels-tab.tt
index c003d70ea..692f2682d 100644
--- a/src/root/jobset-channels-tab.tt
+++ b/src/root/jobset-channels-tab.tt
@@ -2,7 +2,7 @@
 
 [% IF channels.size == 0 %]
 
-  <div class="alert">There are no channels available.</div>
+  <div class="alert alert-warning">There are no channels available.</div>
 
 [% ELSE %]
 
diff --git a/src/root/jobset-eval.tt b/src/root/jobset-eval.tt
index d444322f2..6822ed133 100644
--- a/src/root/jobset-eval.tt
+++ b/src/root/jobset-eval.tt
@@ -29,7 +29,7 @@ project=otherEval.jobset.project.name jobset=otherEval.jobset.name %] evaluation
 c.uri_for(c.controller('JobsetEval').action_for('view'),
 [otherEval.id]) %]">[% otherEval.id %]</a>.</p>
 [% ELSE %]
-<div class="alert">Couldn't find an evaluation to compare to.</div>
+<div class="alert alert-danger">Couldn't find an evaluation to compare to.</div>
 [% END %]
 
 <form>
diff --git a/src/root/jobset-jobs-tab.tt b/src/root/jobset-jobs-tab.tt
index 8acc5ca2f..e38234d22 100644
--- a/src/root/jobset-jobs-tab.tt
+++ b/src/root/jobset-jobs-tab.tt
@@ -36,12 +36,12 @@
 
 [% IF jobs.size == 0 %]
 
-  <div class="alert">There are no matching jobs.</div>
+  <div class="alert alert-warning">There are no matching jobs.</div>
 
 [% ELSE %]
 
   [% IF nrJobs > jobs.size %]
-    <div class="alert">Showing the first [% jobs.size %] jobs.  <a href="javascript:setFilter('filter=%')">Show all [% nrJobs %] jobs...</a></div>
+    <div class="alert alert-info">Showing the first [% jobs.size %] jobs.  <a href="javascript:setFilter('filter=%')">Show all [% nrJobs %] jobs...</a></div>
   [% END %]
 
   [% evalIds = evals.keys.nsort.reverse %]
diff --git a/src/root/search.tt b/src/root/search.tt
index d2b2dece4..71b88e1cc 100644
--- a/src/root/search.tt
+++ b/src/root/search.tt
@@ -81,7 +81,7 @@
 [% IF builds.size > 0 || buildsdrv.size > 0 ; matched = 1 ; END %]
 
 [% IF !matched %]
-  <div class="alert alert-warn">Sorry! Nothing matches your query.</div>
+  <div class="alert alert-warning">Sorry! Nothing matches your query.</div>
 [% END %]
 
 [% END %]