diff --git a/apps/amo/log.py b/apps/amo/log.py
index 399daa1807..541cc9dcaa 100644
--- a/apps/amo/log.py
+++ b/apps/amo/log.py
@@ -347,7 +347,7 @@ class BULK_VALIDATION_UPDATED(_LOG):
 class BULK_VALIDATION_EMAILED(_LOG):
     id = 47
     action_class = None
-    format = _(u'Authors emailed about compatability of {version}.')
+    format = _(u'Authors emailed about compatibility of {version}.')
 
 
 class CUSTOM_TEXT(_LOG):
diff --git a/apps/compat/templates/compat/index.html b/apps/compat/templates/compat/index.html
index 9ff4b23065..e07f728afa 100644
--- a/apps/compat/templates/compat/index.html
+++ b/apps/compat/templates/compat/index.html
@@ -23,6 +23,7 @@
   <table id="compat">
     <tr>
       <th>{{ _('Version') }}</th>
+      {# L10n: "#" means "number" #}
       <th>{{ _('# of Add-ons') }}</th>
     </tr>
     {% for key, title in keys %}
diff --git a/apps/zadmin/views.py b/apps/zadmin/views.py
index a353277d00..043d6defff 100644
--- a/apps/zadmin/views.py
+++ b/apps/zadmin/views.py
@@ -240,8 +240,8 @@ def notify(request, job):
     notify_form = NotifyForm(request.POST)
 
     if not notify_form.is_valid():
-        messages.error(request, _('Error processing the mail template: %s'
-                                  % notify_form.errors['text'][0]))
+        msg = _('Error processing the mail template: %s')
+        messages.error(request, msg % notify_form.errors['text'][0])
 
     else:
         file_pks = job.result_failing().values_list('file_id', flat=True)
diff --git a/media/js/zamboni/admin_validation.js b/media/js/zamboni/admin_validation.js
index 315e1e655a..d99928cd31 100644
--- a/media/js/zamboni/admin_validation.js
+++ b/media/js/zamboni/admin_validation.js
@@ -41,8 +41,9 @@ function initAdminValidation(doc) {
     var $version_popup = $('#set-max-version').popup('a.set-max-version', {
         callback: function(obj) {
             var $ct = $(obj.click_target);
-            var msg = ngettext('Set {0} addon-on to a max version of {1}.',
-                               'Set {0} addon-ons to a max version of {1}.',
+            // L10n: {0} is the number of add-ons, {1} is a version like 4.0
+            var msg = ngettext('Set {0} add-on to a max version of {1}.',
+                               'Set {0} add-ons to a max version of {1}.',
                                $ct.attr('data-job-count'));
             $(this).children('p').text(format(msg, [$ct.attr('data-job-count'),
                                                    $ct.attr('data-job-version')]));