diff --git a/configs/cdr_mysql.conf.sample b/configs/cdr_mysql.conf.sample
index dd37e2ce925162f87d99c0060434e04df1e519eb..04b70493b55767aaaacd762a117416d02de35ce7 100644
--- a/configs/cdr_mysql.conf.sample
+++ b/configs/cdr_mysql.conf.sample
@@ -42,18 +42,19 @@
 ;static "<value>" => <column>
 ;alias <cdrvar> => <column>
 alias start => calldate
-alias callerid => clid
-;alias src => src
-;alias dst => dst
-;alias dcontext => dcontext
-;alias channel => channel
-;alias dstchannel => dstchannel
-;alias lastapp => lastapp
-;alias lastdata => lastdata
-;alias duration => duration
-;alias billsec => billsec
-;alias disposition => disposition
-;alias amaflags => amaflags
-;alias accountcode => accountcode
-;alias userfield => userfield
-;alias uniqueid => uniqueid
+;alias clid => <a_field_not_named_clid>
+;alias src => <a_field_not_named_src>
+;alias dst => <a_field_not_named_dst>
+;alias dcontext => <a_field_not_named_dcontext>
+;alias channel => <a_field_not_named_channel>
+;alias dstchannel => <a_field_not_named_dstchannel>
+;alias lastapp => <a_field_not_named_lastapp>
+;alias lastdata => <a_field_not_named_lastdata>
+;alias duration => <a_field_not_named_duration>
+;alias billsec => <a_field_not_named_billsec>
+;alias disposition => <a_field_not_named_disposition>
+;alias amaflags => <a_field_not_named_amaflags>
+;alias accountcode => <a_field_not_named_accountcode>
+;alias userfield => <a_field_not_named_userfield>
+;alias uniqueid => <a_field_not_named_uniqueid>
+