diff --git a/data/etc/apache2/conf-available/repro-plinth.conf b/data/etc/apache2/conf-available/repro-plinth.conf
index 6ced94f09..8516c4324 100644
--- a/data/etc/apache2/conf-available/repro-plinth.conf
+++ b/data/etc/apache2/conf-available/repro-plinth.conf
@@ -5,5 +5,7 @@
 <Location /repro>
     ProxyPass http://localhost:5080
     Include includes/freedombox-single-sign-on.conf
-    TKTAuthToken "admin"
+    <IfModule mod_auth_pubtkt.c>
+        TKTAuthToken "admin"
+    </IfModule>
 </Location>