diff --git a/src/modules/uid_auth_db/auth_db.xml b/src/modules/uid_auth_db/auth_db.xml
index bf59ff5994a..25849663c54 100644
--- a/src/modules/uid_auth_db/auth_db.xml
+++ b/src/modules/uid_auth_db/auth_db.xml
@@ -24,7 +24,7 @@
     <para>
       The <command>auth_db</command> module needs the
       <serdoc:module>auth</serdoc:module> module and a database module such
-      as the <serdoc:module>mysql</serdoc:module> module. 
+      as the <serdoc:module>mysql</serdoc:module> module.
     </para>
   </refsect1>
 
@@ -318,7 +318,7 @@
         domain ID stored in the database should be considered when
         loading credentials from the database. If it is changed to
         <literal>yes</literal>, only those rows are loaded where the
-        domain ID in the column specified by the 
+        domain ID in the column specified by the
         <serdoc:modparam module="auth_db">did_column</serdoc:modparam>
         parameter matches that determined from the domain in the
         To header field.
@@ -378,7 +378,7 @@
         parameter is set to <literal>yes</literal>. In this case, the
         domain ID is taken from the <varname>$t.did</varname> attribute
         if the method of the request is <varname>REGISTER</varname> or
-        <varname>$f.did</varname> otherwise. 
+        <varname>$f.did</varname> otherwise.
       </para>
       <para>
         If <serdoc:modparam module="auth_db">use_did</serdoc:modparam>
diff --git a/src/modules/uid_auth_db/doc/functions.xml b/src/modules/uid_auth_db/doc/functions.xml
index de32bcf2ff3..3b4a82bf71a 100644
--- a/src/modules/uid_auth_db/doc/functions.xml
+++ b/src/modules/uid_auth_db/doc/functions.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" 
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
    "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <section id="auth_db.functions" xmlns:xi="http://www.w3.org/2001/XInclude">
@@ -58,7 +58,7 @@ if (www_authorize("iptel.org", "subscriber")) {
 	    </programlisting>
 	</example>
     </section>
-    
+
     <section id="proxy_authorize">
 	<title><function>proxy_authorize(realm, table)</function></title>
 	<para>
diff --git a/src/modules/uid_auth_db/doc/params.xml b/src/modules/uid_auth_db/doc/params.xml
index d5bb2395439..a066737a817 100644
--- a/src/modules/uid_auth_db/doc/params.xml
+++ b/src/modules/uid_auth_db/doc/params.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" 
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
    "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <section id="auth_db.parameters" xmlns:xi="http://www.w3.org/2001/XInclude">
@@ -28,7 +28,7 @@ modparam("auth_db", "db_url", "mysql://foo:bar@foobar.org/ser")
 	    </programlisting>
 	</example>
     </section>
-    
+
     <section id="user_column">
 	<title><varname>user_column</varname> (string)</title>
 	<para>
diff --git a/src/modules/uid_auth_db/doc/uid_auth_db.xml b/src/modules/uid_auth_db/doc/uid_auth_db.xml
index 42b8d6a4e6b..e48e6ddcc09 100644
--- a/src/modules/uid_auth_db/doc/uid_auth_db.xml
+++ b/src/modules/uid_auth_db/doc/uid_auth_db.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" 
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
    "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <book id="uid_auth_db" xmlns:xi="http://www.w3.org/2001/XInclude">
@@ -27,7 +27,7 @@
 	</copyright>
     </bookinfo>
     <toc></toc>
-    
+
     <chapter>
 	<title>Admin Guide</title>
     <section id="uid_auth_db.overview">
@@ -68,7 +68,7 @@
 	    </itemizedlist>
 	</para>
     </section>
-    
+
     <xi:include href="params.xml"/>
     <xi:include href="functions.xml"/>
     </chapter>