diff --git a/scm-core/src/main/javadoc/overview.html b/scm-core/src/main/javadoc/overview.html
index 208a72facb..c6deba5cf3 100644
--- a/scm-core/src/main/javadoc/overview.html
+++ b/scm-core/src/main/javadoc/overview.html
@@ -39,7 +39,7 @@
   <body>
     <div style="text-align: justify;">
       <p>
-        <img src="http://download.scm-manager.org/images/logo/scm-manager_logo.jpg" />
+        <img src="//download.scm-manager.org/images/logo/scm-manager_logo.jpg" alt="SCM-Manager" />
       </p>      
     </div>
     <p></p>
@@ -62,7 +62,7 @@
     <h3>Architecture</h3>
 
     <div style="text-align: center;">
-      <img src="http://download.scm-manager.org/images/architecture/architecture.001.png" alt="Architecture Overview">
+      <img src="//download.scm-manager.org/images/architecture/architecture.001.png" alt="Architecture Overview">
     </div>
   </body>
 </html>
