diff --git a/plinth/modules/pagekite/forms.py b/plinth/modules/pagekite/forms.py
index 73d2f44b0..6e83bd45e 100644
--- a/plinth/modules/pagekite/forms.py
+++ b/plinth/modules/pagekite/forms.py
@@ -49,7 +49,7 @@ class ConfigurationForm(forms.Form):
         label=ugettext_lazy('Server domain'), required=False,
         help_text=\
         ugettext_lazy('Select your pagekite server. Set "pagekite.net" to use '
-                      'the default pagekite.net server'),
+                      'the default pagekite.net server.'),
         widget=forms.TextInput())
     server_port = forms.IntegerField(
         label=ugettext_lazy('Server port'), required=False,
@@ -65,7 +65,7 @@ class ConfigurationForm(forms.Form):
         label=ugettext_lazy('Kite secret'),
         help_text=\
         ugettext_lazy('A secret associated with the kite or the default secret '
-                      'for your account if no secret is set on the kite'))
+                      'for your account if no secret is set on the kite.'))
 
     def save(self, request):
         """Save the form on submission after validation."""
diff --git a/plinth/modules/transmission/forms.py b/plinth/modules/transmission/forms.py
index c690bef1a..5f2259c66 100644
--- a/plinth/modules/transmission/forms.py
+++ b/plinth/modules/transmission/forms.py
@@ -37,7 +37,7 @@ default directory, ensure that the new directory exists and is writable by \
 
     rpc_username = forms.CharField(
         label=_('Username'),
-        help_text=_('Username to login to the web interface'))
+        help_text=_('Username to login to the web interface.'))
 
     rpc_password = forms.CharField(
         label=_('Password'),
diff --git a/plinth/modules/transmission/templates/transmission.html b/plinth/modules/transmission/templates/transmission.html
index 2ee91599d..414a722da 100644
--- a/plinth/modules/transmission/templates/transmission.html
+++ b/plinth/modules/transmission/templates/transmission.html
@@ -47,7 +47,7 @@
       {% trans "Transmission daemon is running" %}
     {% else %}
       <span class='running-status inactive'></span>
-      {% trans "Transmission daemon is not running" %}
+      {% trans "Transmission daemon is not running." %}
     {% endif %}
   </p>
 
diff --git a/plinth/package.py b/plinth/package.py
index 01c8984d3..75a8bfca0 100644
--- a/plinth/package.py
+++ b/plinth/package.py
@@ -260,7 +260,7 @@ def _should_show_install_view(request, package_names):
     exception = transaction.collect_result()
     if not exception:
         messages.success(request,
-                         _('Installed and configured packages successfully'))
+                         _('Installed and configured packages successfully.'))
         return False
     else:
         error_string = getattr(exception, 'error_string', str(exception))