diff --git a/Changes b/Changes
index 53141c3..19922e3 100644
--- a/Changes
+++ b/Changes
@@ -12,6 +12,8 @@
 - Added the new option 'rrdtool_extra_options' to be able to include RRDtool
   extra options on every graph.
   	(suggested by Greg Ogonowski, greg AT indexcom.com)
+- Added the new option 'subject_prefix' in 'emailreports.pm' to be able to
+  set a customized prefix in the Subject of the emails that will be sent.
 - Changed the main loop functionality using now the select() function, instead
   of the alarm()+pause() pair. This should improve the responsiveness on high
   system loads. [#230]
diff --git a/lib/emailreports.pm b/lib/emailreports.pm
index 33ae8f9..7757840 100644
--- a/lib/emailreports.pm
+++ b/lib/emailreports.pm
@@ -38,6 +38,7 @@ sub emailreports_send {
 	my $imgs_dir = $config->{imgs_dir};
 	my $images;
 	my $mime;
+	my $subject;
 	
 	logger("$myself: sending $report reports.");
 
@@ -175,6 +176,8 @@ EOF
 
 	$html .= $html_footer;
 
+	$subject = $emailreports->{subject_prefix} || "Monitorix:";
+
 	# create the multipart container and add attachments
 	foreach (split(',', $emailreports->{$report}->{to})) {
 		my $to = trim($_);
@@ -182,7 +185,7 @@ EOF
 		my $msg = new MIME::Lite(
 			From		=> $emailreports->{from_address},
 			To		=> $to,
-			Subject		=> "Monitorix: '$report' Report",
+			Subject		=> "$subject '$report' Report",
 			Type		=> "multipart/related",
 			Organization	=> "Monitorix",
 		);
diff --git a/man/man5/monitorix.conf.5 b/man/man5/monitorix.conf.5
index 97d66d6..07e066e 100644
--- a/man/man5/monitorix.conf.5
+++ b/man/man5/monitorix.conf.5
@@ -3117,6 +3117,13 @@ This is the address that will be used as remitent for all the monthly report ema
 Default value: \fInoreply@example.com\fP
 .RE
 .P
+.BI subject_prefix
+.RS
+This is a string that will be prefixed in the Subject of all emails that will be sent.
+.P
+Default value: \fIMonitorix:\fP
+.RE
+.P
 .BI hour
 .RS
 This is the hour (in 24h format) when the email reports will be sent.