diff --git a/digitalglarus/templates/digitalglarus/signup.html b/digitalglarus/templates/digitalglarus/signup.html
index aea83f4e..78b130fb 100644
--- a/digitalglarus/templates/digitalglarus/signup.html
+++ b/digitalglarus/templates/digitalglarus/signup.html
@@ -29,6 +29,9 @@
                 <br>
                 <div class="notice-box">
                     <p class="signup-text">Already a member?<a href="{% url 'digitalglarus:login' %}">Log in</a></p>
+                    <p class="signup-text"> If you are a user of <a href="{% url 'datacenterlight:index' %}">Data Center Light</a>,
+                        you can <a href="{% url 'digitalglarus:login' %}">login</a> on Digital Glarus without a new signup.
+                    </p>
                 </div>
             </div>