diff --git a/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm b/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm
index 73e7b8321..b7fee879c 100644
--- a/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm
+++ b/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm
@@ -346,7 +346,7 @@ sub Sql {
               $self->{Sql} .= ' LIKE '.$value;
             } elsif ( $term->{op} eq 'NOT LIKE' ) {
               $self->{Sql} .= ' NOT LIKE '.$value;
-            } elsif ( $term->{attr} eq 'Tags' and ($term->{op} eq 'LIKE' or $term->{op} eq 'IS') and $term->{val} eq '') {
+            } elsif ( $term->{attr} eq 'Tags' and ($term->{op} eq 'LIKE' or $term->{op} eq 'IS') and $term->{val} eq 0) {
               $self->{Sql} .= 'NOT EXISTS (SELECT NULL FROM `Events_Tags` AS ET WHERE ET.EventId = E.Id)';
             } else {
               $self->{Sql} .= ' '.$term->{op}.' '.$value;
diff --git a/web/ajax/events.php b/web/ajax/events.php
index dadb5963b..e5bf3a120 100644
--- a/web/ajax/events.php
+++ b/web/ajax/events.php
@@ -46,7 +46,7 @@ if (!empty($_REQUEST['MonitorId'])) {
   $filter->addTerm(array('cnj'=>'and', 'attr'=>'MonitorId', 'op'=> '=', 'val'=>$_REQUEST['MonitorId']));
 }
 if (!empty($_REQUEST['Tag'])) {
-  $filter->addTerm(array('cnj'=>'and', 'attr'=>'Tag', 'op'=>'=', 'val'=>''));
+  $filter->addTerm(array('cnj'=>'and', 'attr'=>'Tag', 'op'=>'=', 'val'=>$_REQUEST['Tag']));
 }
 
 // Search contains a user entered string to search on
diff --git a/web/includes/Filter.php b/web/includes/Filter.php
index fe5b62aca..1eca3402b 100644
--- a/web/includes/Filter.php
+++ b/web/includes/Filter.php
@@ -924,6 +924,9 @@ class Filter extends ZM_Object {
     return self::$archiveTypes;
   }
 
+  //
+  // This displays filters from the filters page.
+  //
   public function widget() {
     $html = '<table id="fieldsTable" class="filterTable"><tbody>';
     $opTypes = $this->opTypes();
@@ -976,7 +979,7 @@ class Filter extends ZM_Object {
         }
       }
     }
-    $availableTags = array(''=>translate('No Tag'));
+    $availableTags = array('0'=>translate('No Tag'));
     foreach ( dbFetchAll('SELECT Id, Name FROM Tags ORDER BY lower(`Name`) ASC') AS $tag ) {
       $availableTags[$tag['Id']] = validHtmlStr($tag['Name']);
     }
@@ -1011,14 +1014,11 @@ class Filter extends ZM_Object {
           $html .= '<td>'.htmlSelect("filter[Query][terms][$i][op]", $opTypes, $term['op'], ['class'=>'chosen chosen-full-width']).'</td>'.PHP_EOL;
           $options = ['class'=>'chosen chosen-full-width', 'multiple'=>'multiple'];
           $selected = explode(',', $term['val']);
-          if (count($selected) == 1 and !$selected[0]) {
-            $selected = null;
-          }
           $html .= '<td>'.htmlSelect("filter[Query][terms][$i][val]", $availableTags, $selected, $options).'</td>'.PHP_EOL;
-          // ZM\Debug('$availableTags: '.$availableTags);
-          // ZM\Debug('$selected: '.$selected);
-
-
+          // These echo statements print these variables at the top of the view for debugging.
+          // echo '<div style="background-color:orange"><pre>availableTags: '; print_r($availableTags); echo '</pre></div>';
+          // echo '<div style="background-color:lightblue"><pre>selected: '; print_r($selected); echo '</pre></div>';
+          // echo '<div style="background-color:green"><pre>options: '; print_r($options); echo '</pre></div>';
 
         } else if ( $term['attr'] == 'DateTime' || $term['attr'] == 'StartDateTime' || $term['attr'] == 'EndDateTime') {
           $html .= '<td>'.htmlSelect("filter[Query][terms][$i][op]", $opTypes, $term['op'], ['class'=>'chosen chosen-full-width']).'</td>'.PHP_EOL;
@@ -1088,6 +1088,9 @@ class Filter extends ZM_Object {
     return $html;
   }  # end function widget()
 
+  //
+  // This displays filters from the events page.
+  //
   public function simple_widget() {
     $html = '<div id="fieldsTable" class="filterTable">';
     $terms = $this->terms();
@@ -1112,7 +1115,7 @@ class Filter extends ZM_Object {
     for ( $i = 0; $i < 7; $i++ ) {
       $weekdays[$i] = date('D', mktime(12, 0, 0, 1, $i+1, 2001));
     }
-    $availableTags = array(''=>translate('No Tag'));
+    $availableTags = array('0'=>translate('No Tag'));
     foreach ( dbFetchAll('SELECT Id, Name FROM Tags ORDER BY lower(`Name`) ASC') AS $tag ) {
       $availableTags[$tag['Id']] = validHtmlStr($tag['Name']);
     }
@@ -1146,11 +1149,7 @@ class Filter extends ZM_Object {
           $html .= htmlSelect("filter[Query][terms][$i][val]", $archiveTypes, $term['val'],['id'=>'filterArchived', 'class'=>'chosen chosen-auto-width']).PHP_EOL;
           $html .= '</span>';
         } else if ( $term['attr'] == 'Tags' ) {
-          $selected = empty($term['val']) ? [] : json_decode($term['val']);
-          // echo '<pre>selected: '; print_r($selected); echo '</pre>';
-          if (count($selected) == 1 and !$selected[0]) {
-            $selected = null;
-          }
+          $selected = explode(',', $term['val']);
           $options = ['id'=>'filterTags', 'class'=>'chosen chosen-auto-width', 'multiple'=>'multiple', 'data-placeholder'=>translate('All Tags')];
           if (isset($term['cookie'])) {
             $options['data-cookie'] = $term['cookie'];
@@ -1158,10 +1157,10 @@ class Filter extends ZM_Object {
             if (!$selected and isset($_COOKIE[$term['cookie']]) and $_COOKIE[$term['cookie']])
               $selected = json_decode($_COOKIE[$term['cookie']]);
           }
-          // These echo statements print these variables at the top of the view.
-          // echo '<pre>availableTags: '; print_r($availableTags); echo '</pre>';
-          // echo '<pre>selected: '; print_r($selected); echo '</pre>';
-          // echo '<pre>options: '; print_r($options); echo '</pre>';
+          // These echo statements print these variables at the top of the view for debugging.
+          // echo '<div style="background-color:orange"><pre>availableTags: '; print_r($availableTags); echo '</pre></div>';
+          // echo '<div style="background-color:lightblue"><pre>selected: '; print_r($selected); echo '</pre></div>';
+          // echo '<div style="background-color:green"><pre>options: '; print_r($options); echo '</pre></div>';
 
           $html .= '<span class="term-value-wrapper">';
           $html .= htmlSelect("filter[Query][terms][$i][val]", $availableTags, $selected, $options).PHP_EOL;
diff --git a/web/includes/FilterTerm.php b/web/includes/FilterTerm.php
index cc8aa30e2..95d6a8941 100644
--- a/web/includes/FilterTerm.php
+++ b/web/includes/FilterTerm.php
@@ -343,7 +343,7 @@ class FilterTerm {
         $subterms[] = $subterm;
       }
       $sql .= '('.implode(' OR ', $subterms).')';
-    } elseif (($this->attr === 'Tags') && ($values[0] === '')) {
+    } elseif (($this->attr === 'Tags') && ($values[0] === "'0'")) {
       $sql .= 'NOT EXISTS (SELECT NULL FROM Events_Tags AS ET WHERE ET.EventId = E.Id)';
     } else {
       $sql .= $this->sql_attr();
diff --git a/web/skins/classic/views/filter.php b/web/skins/classic/views/filter.php
index 870403408..b8413587e 100644
--- a/web/skins/classic/views/filter.php
+++ b/web/skins/classic/views/filter.php
@@ -132,7 +132,7 @@ foreach (ZM\Zone::find([], ['order'=>'lower(`Name`) ASC']) as $zone ) {
   }
 }
 
-$availableTags = array(''=>translate('No Tag'));
+$availableTags = array('0'=>translate('No Tag'));
 foreach ( dbFetchAll('SELECT Id, Name FROM Tags ORDER BY LastAssignedDate DESC') AS $tag ) {
   $availableTags[$tag['Id']] = validHtmlStr($tag['Name']);
 }