diff --git a/ChangeLog b/ChangeLog
index 29c3714..fe62a28 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -57,6 +57,11 @@ Changes in version 1.12.3
   * lib/libapse.lib - Davide Madrisan:
     Do not use 'dirname' and 'basename': bash provides primitives to do that.
 
++ update
+  * conf/02-specfile-formatting-rules.conf - Davide Madrisan:
+    'library_name_structure': new default value is now "".
+    The old value ("^lib") does no longer apply.
+
 -------------------------------------------------------------------------------
 
 Changes in version 1.12.2
diff --git a/conf/02-specfile-formatting-rules.conf b/conf/02-specfile-formatting-rules.conf
index b2353cc..e9643a4 100644
--- a/conf/02-specfile-formatting-rules.conf
+++ b/conf/02-specfile-formatting-rules.conf
@@ -1,8 +1,9 @@
 ## Force a name structure for some specific packages --------------------------
 
 # Force a name structure for library packages
-# Set to "" if you don't want to fix a structure
-library_name_structure="^lib"
+# Default value: "" (no structure)
+# An alternative setting can be "^lib" if your libraries must start with lib
+library_name_structure=""
 
 # Structure for the names of the patches (Patch[0-9]* ids)
 # Default value: "^%\{name\}-[0-9][\.0-9a-z]*-[a-zA-Z0-9_-]+*.patch[\.gzb2]*",