diff --git a/pandora_console/extras/mr/67.sql b/pandora_console/extras/mr/67.sql
new file mode 100644
index 0000000000..3cdcc5b722
--- /dev/null
+++ b/pandora_console/extras/mr/67.sql
@@ -0,0 +1,5 @@
+START TRANSACTION;
+
+ALTER TABLE treport_content ADD check_unknowns_graph tinyint DEFAULT 0 NULL;
+
+COMMIT;
diff --git a/pandora_console/godmode/reporting/reporting_builder.item_editor.php b/pandora_console/godmode/reporting/reporting_builder.item_editor.php
index 6343fabe1d..698cb6c061 100755
--- a/pandora_console/godmode/reporting/reporting_builder.item_editor.php
+++ b/pandora_console/godmode/reporting/reporting_builder.item_editor.php
@@ -150,6 +150,7 @@ $fullscale = false;
 $percentil = false;
 $image_threshold = false;
 $time_compare_overlapped = false;
+$unknowns_graph = false;
 
 // Added for events items.
 $server_multiple = [0];
@@ -344,6 +345,7 @@ switch ($action) {
                     $percentil = isset($style['percentil']) ? (bool) $style['percentil'] : 0;
                     $image_threshold = (isset($style['image_threshold']) === true) ? (bool) $style['image_threshold'] : false;
                     $graph_render = $item['graph_render'];
+                    $unknowns_graph = $item['check_unknowns_graph'];
                     // The break hasn't be forgotten.
                 case 'simple_baseline_graph':
                 case 'projection_graph':
@@ -2799,6 +2801,23 @@ if (is_metaconsole() === true) {
             </td>
         </tr>
 
+        <tr id="row_unknowns_graph"   class="datos">
+            <td class="bolder">
+            <?php
+            echo __('Show unknowns in graph');
+            ?>
+            </td>
+            <td>
+            <?php
+            html_print_checkbox_switch(
+                'unknowns_graph',
+                1,
+                $unknowns_graph
+            );
+            ?>
+            </td>
+        </tr>
+
         <tr id="row_time_compare_overlapped"   class="datos">
             <td class="bolder">
             <?php
@@ -6630,6 +6649,7 @@ function chooseType() {
     $("#row_group_by").hide();
     $("#row_type_show").hide();
     $("#row_use_prefix_notation").hide();
+    $("#row_unknowns_graph").hide();
 
     // SLA list default state.
     $("#sla_list").hide();
@@ -6716,6 +6736,7 @@ function chooseType() {
             $("#row_image_threshold").show();
             $("#row_graph_render").show();
             $("#row_percentil").show();
+            $("#row_unknowns_graph").show();
 
             // Force type.
             if('<?php echo $action; ?>' === 'new'){
diff --git a/pandora_console/godmode/reporting/reporting_builder.php b/pandora_console/godmode/reporting/reporting_builder.php
index eeee7aa1b4..8d449c8235 100755
--- a/pandora_console/godmode/reporting/reporting_builder.php
+++ b/pandora_console/godmode/reporting/reporting_builder.php
@@ -1917,6 +1917,7 @@ switch ($action) {
                                 $values['graph_render'] = (int) get_parameter(
                                     'graph_render'
                                 );
+                                $values['check_unknowns_graph'] = get_parameter_switch('unknowns_graph', 0);
                             case 'simple_baseline_graph':
                                 // HACK it is saved in show_graph field.
                                 $values['show_graph'] = (int) get_parameter(
@@ -2800,6 +2801,7 @@ switch ($action) {
                                 $values['graph_render'] = (int) get_parameter(
                                     'graph_render'
                                 );
+                                $values['check_unknowns_graph'] = get_parameter_switch('unknowns_graph', 0);
                             case 'simple_baseline_graph':
                                 // HACK it is saved in show_graph field.
                                 $values['show_graph'] = (int) get_parameter(
diff --git a/pandora_console/include/functions_reporting.php b/pandora_console/include/functions_reporting.php
index ee1f04b952..e7ed9a0827 100755
--- a/pandora_console/include/functions_reporting.php
+++ b/pandora_console/include/functions_reporting.php
@@ -11105,7 +11105,7 @@ function reporting_simple_graph(
                 ),
                 'ttl'                => $ttl,
                 'compare'            => $time_compare_overlapped,
-                'show_unknown'       => true,
+                'show_unknown'       => $content['check_unknowns_graph'],
                 'percentil'          => ($content['style']['percentil'] == 1) ? $config['percentil'] : null,
                 'fullscale'          => $fullscale,
                 'server_id'          => $id_meta,
diff --git a/pandora_console/pandoradb.sql b/pandora_console/pandoradb.sql
index 8b7fcf071a..a5395fbbf1 100644
--- a/pandora_console/pandoradb.sql
+++ b/pandora_console/pandoradb.sql
@@ -1674,6 +1674,7 @@ CREATE TABLE IF NOT EXISTS `treport_content` (
   `macros_definition` TEXT,
   `render_definition` TEXT,
   `use_prefix_notation` TINYINT UNSIGNED NOT NULL DEFAULT 1,
+  `check_unknowns_graph` tinyint DEFAULT '0',
   PRIMARY KEY(`id_rc`),
   FOREIGN KEY (`id_report`) REFERENCES treport(`id_report`)
     ON UPDATE CASCADE ON DELETE CASCADE