diff --git a/src/util.cr b/src/util.cr
index 6afef02..8d0f0df 100644
--- a/src/util.cr
+++ b/src/util.cr
@@ -133,6 +133,7 @@ def validate_password(password)
 end
 
 macro render_xml(path)
+  base_url = Config.current.base_url
   send_file env, ECR.render({{path}}).to_slice, "application/xml"
 end
 
diff --git a/src/views/opds/index.ecr b/src/views/opds/index.ecr
index 3bcf68f..10c179c 100644
--- a/src/views/opds/index.ecr
+++ b/src/views/opds/index.ecr
@@ -4,8 +4,8 @@
 <feed xmlns="http://www.w3.org/2005/Atom">
   <id>urn:mango:index</id>
 
-  <link rel="self" href="/opds/" type="application/atom+xml;profile=opds-catalog;kind=navigation" />
-  <link rel="start" href="/opds/" type="application/atom+xml;profile=opds-catalog;kind=navigation" />
+  <link rel="self" href="<%= base_url %>opds/" type="application/atom+xml;profile=opds-catalog;kind=navigation" />
+  <link rel="start" href="<%= base_url %>opds/" type="application/atom+xml;profile=opds-catalog;kind=navigation" />
 
   <title>Library</title>
 
@@ -18,7 +18,7 @@
   <entry>
     <title><%= t.display_name %></title>
     <id>urn:mango:<%= t.id %></id>
-    <link type="application/atom+xml;profile=opds-catalog;kind=navigation" rel="subsection" href="/opds/book/<%= t.id %>" />
+    <link type="application/atom+xml;profile=opds-catalog;kind=navigation" rel="subsection" href="<%= base_url %>opds/book/<%= t.id %>" />
   </entry>
   <% end %>
 </feed>
diff --git a/src/views/opds/title.ecr b/src/views/opds/title.ecr
index bd4567c..476bb8d 100644
--- a/src/views/opds/title.ecr
+++ b/src/views/opds/title.ecr
@@ -2,8 +2,8 @@
 <feed xmlns="http://www.w3.org/2005/Atom">
   <id>urn:mango:<%= title.id %></id>
 
-  <link rel="self" href="/opds/book/<%= title.id %>" type="application/atom+xml;profile=opds-catalog;kind=navigation" />
-  <link rel="start" href="/opds/" type="application/atom+xml;profile=opds-catalog;kind=navigation" />
+  <link rel="self" href="<%= base_url %>opds/book/<%= title.id %>" type="application/atom+xml;profile=opds-catalog;kind=navigation" />
+  <link rel="start" href="<%= base_url %>opds/" type="application/atom+xml;profile=opds-catalog;kind=navigation" />
 
   <title><%= title.display_name %></title>
 
@@ -16,7 +16,7 @@
   <entry>
     <title><%= t.display_name %></title>
     <id>urn:mango:<%= t.id %></id>
-    <link type="application/atom+xml;profile=opds-catalog;kind=navigation" rel="subsection" href="/opds/book/<%= t.id %>" />
+    <link type="application/atom+xml;profile=opds-catalog;kind=navigation" rel="subsection" href="<%= base_url %>opds/book/<%= t.id %>" />
   </entry>
   <% end %>
 
@@ -28,10 +28,10 @@
     <link rel="http://opds-spec.org/image" href="<%= e.cover_url %>" />
     <link rel="http://opds-spec.org/image/thumbnail" href="<%= e.cover_url %>" />
 
-    <link rel="http://opds-spec.org/acquisition" href="/opds/download/<%= e.title_id %>/<%= e.id %>" title="Read" type="<%= MIME.from_filename e.zip_path %>" />
+    <link rel="http://opds-spec.org/acquisition" href="<%= base_url %>opds/download/<%= e.title_id %>/<%= e.id %>" title="Read" type="<%= MIME.from_filename e.zip_path %>" />
 
-    <link type="text/html" rel="alternate" title="Read in Mango" href="/reader/<%= e.title_id %>/<%= e.id %>" />
-    <link type="text/html" rel="alternate" title="Open in Mango" href="/book/<%= e.title_id %>" />
+    <link type="text/html" rel="alternate" title="Read in Mango" href="<%= base_url %>reader/<%= e.title_id %>/<%= e.id %>" />
+    <link type="text/html" rel="alternate" title="Open in Mango" href="<%= base_url %>book/<%= e.title_id %>" />
   </entry>
   <% end %>