diff --git a/about.pl b/about.pl
index 799f8ed910..93532d1b0f 100755
--- a/about.pl
+++ b/about.pl
@@ -826,7 +826,9 @@ sub log4perl_check {
         for my $line (@lines) {
             next unless $line =~ m|log4perl\.appender\.\w+\.filename=(.*)|;
             my $file = $1;
-            if ( !-w $file ) {
+            if ( $file =~ /sip\.log$/ ) {
+                push @log4perl_errors, 'sip_log_still_found';
+            } elsif ( !-w $file ) {
                 push @log4perl_errors, 'logfile_not_writable';
 
                 #NOTE: An unwritable logfile blocks plack.psgi. So you won't reach this script. (BZ 39155)
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
index 71b5a91153..904b37f372 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
@@ -449,6 +449,8 @@
                         <span>One of the logfiles listed in the config file is not writable.</span>
                     [% CASE 'cannot_init_module' %]
                         <span>The Koha::Logger module cannot be initiated correctly (check the log file).</span>
+                    [% CASE 'sip_log_still_found' %]
+                        <span>Config file log4perl.conf still refers to sip.log (instead of sip-output.log).</span>
                     [% CASE %]
                         <span>Unknown error '[% e | html %]'.</span>
                     [% END %]