diff --git a/app/xml_cdr/xml_cdr_extension_summary.php b/app/xml_cdr/xml_cdr_extension_summary.php
index 97dcd6cfaf..feb8c126af 100644
--- a/app/xml_cdr/xml_cdr_extension_summary.php
+++ b/app/xml_cdr/xml_cdr_extension_summary.php
@@ -197,7 +197,7 @@
 	echo "		<th class='center'>".$text['label-missed']."</th>\n";
 	echo "		<th class='center'>".$text['label-no_answer']."</th>\n";
 	echo "		<th class='center'>".$text['label-busy']."</th>\n";
-	echo "		<th class='center'>".$text['label-aloc']."</th>\n";
+	echo "		<th class='center' title='".$text['description-aloc']."'>".$text['label-aloc']."</th>\n";
 	echo "		<th class='center'>".$text['label-inbound_calls']."</th>\n";
 	echo "		<th class='center'>".$text['label-inbound_duration']."</th>\n";
 	echo "		<th class='center'>".$text['label-outbound_calls']."</th>\n";