diff --git a/config/filter.d/asterisk.conf b/config/filter.d/asterisk.conf
index 4f15ff56..73947a67 100644
--- a/config/filter.d/asterisk.conf
+++ b/config/filter.d/asterisk.conf
@@ -5,6 +5,13 @@
 # $Revision$
 #
 
+
+[INCLUDES]
+
+# Read common prefixes. If any customizations available -- read them from
+# common.local
+before = common.conf
+
 [Definition]
 
 # Option:  failregex