Fix robots file path
diff --git a/apache/files/_locations.conf b/apache/files/_locations.conf
index 34865aa..0c382d7 100644
--- a/apache/files/_locations.conf
+++ b/apache/files/_locations.conf
@@ -3,7 +3,7 @@
   <Location "/robots.txt">
     SetHandler None
   </Location>
-  Alias /robots.txt {{ server.www_dir }}/{{ site.robots }}.txt
+  Alias /robots.txt {{ server.www_dir }}/robots_{{ site.robots }}.txt
   {%- endif %}
 
   {%- if site.locations is defined %}