diff --git a/mslib/index.py b/mslib/index.py
index a819b78fa..be1a81d76 100644
--- a/mslib/index.py
+++ b/mslib/index.py
@@ -157,10 +157,10 @@ def plots():
             content = get_content(_file)
         else:
             content = "Gallery was not generated for this server.<br>" \
-                      "For further info on how to generate it, run the " \
-                      "<b>gallery --help</b> command line parameter of mswms.<br>" \
-                      "An example of the gallery can be seen " \
-                      "<a href=\"https://mss.readthedocs.io/en/latest/gallery/index.html\">here</a>"
+                    "For further info on how to generate it, run the " \
+                    "<b>gallery --help</b> command line parameter of mswms.<br>" \
+                    "An example of the gallery can be seen " \
+                    "<a href=\"https://mss.readthedocs.io/en/stable/gallery/index.html\">here</a>"
         return render_template("/content.html", act="plots", content=content)
 
     @APP.route("/mss/code/<path:filename>")