diff --git a/db_queries.php b/db_queries.php
index 6221854e..73ee2def 100644
--- a/db_queries.php
+++ b/db_queries.php
@@ -139,7 +139,7 @@ $token = $_SESSION['token'];
         </div>
         <!-- /.box-header -->
         <div class="box-body">
-            <table id="all-queries" class="table table-striped table-bordered" cellspacing="0" width="100%">
+            <table id="all-queries" class="table table-striped table-bordered" width="100%">
                 <thead>
                     <tr>
                         <th>Time</th>
diff --git a/dns_records.php b/dns_records.php
index d1380c4e..4d429af4 100644
--- a/dns_records.php
+++ b/dns_records.php
@@ -72,7 +72,7 @@
             </div>
             <!-- /.box-header -->
             <div class="box-body">
-                <table id="customDNSTable" class="table table-striped table-bordered" cellspacing="0" width="100%">
+                <table id="customDNSTable" class="table table-striped table-bordered" width="100%">
                     <thead>
                     <tr>
                         <th>Domain</th>
diff --git a/groups-adlists.php b/groups-adlists.php
index b6fc61d0..ae5c98ed 100644
--- a/groups-adlists.php
+++ b/groups-adlists.php
@@ -53,7 +53,7 @@
             </div>
             <!-- /.box-header -->
             <div class="box-body">
-                <table id="adlistsTable" class="table table-striped table-bordered" cellspacing="0" width="100%">
+                <table id="adlistsTable" class="table table-striped table-bordered" width="100%">
                     <thead>
                     <tr>
                         <th>ID</th>
diff --git a/groups-clients.php b/groups-clients.php
index beec4ad0..e982fea0 100644
--- a/groups-clients.php
+++ b/groups-clients.php
@@ -55,7 +55,7 @@
             </div>
             <!-- /.box-header -->
             <div class="box-body">
-                <table id="clientsTable" class="table table-striped table-bordered" cellspacing="0" width="100%">
+                <table id="clientsTable" class="table table-striped table-bordered" width="100%">
                     <thead>
                     <tr>
                         <th>ID</th>
diff --git a/groups-domains.php b/groups-domains.php
index 8b76b1e3..0c1c1ded 100644
--- a/groups-domains.php
+++ b/groups-domains.php
@@ -118,7 +118,7 @@
             </div>
             <!-- /.box-header -->
             <div class="box-body">
-                <table id="domainsTable" class="table table-striped table-bordered" cellspacing="0" width="100%">
+                <table id="domainsTable" class="table table-striped table-bordered" width="100%">
                     <thead>
                     <tr>
                         <th>ID</th>
diff --git a/groups.php b/groups.php
index 27659d61..e7680cfa 100644
--- a/groups.php
+++ b/groups.php
@@ -52,7 +52,7 @@
             </div>
             <!-- /.box-header -->
             <div class="box-body">
-                <table id="groupsTable" class="table table-striped table-bordered" cellspacing="0" width="100%">
+                <table id="groupsTable" class="table table-striped table-bordered" width="100%">
                     <thead>
                     <tr>
                         <th>ID</th>
diff --git a/messages.php b/messages.php
index ac179b72..d941e566 100644
--- a/messages.php
+++ b/messages.php
@@ -19,7 +19,7 @@
         <div class="box" id="messages-list">
             <!-- /.box-header -->
             <div class="box-body">
-                <table id="messagesTable" class="table table-striped table-bordered" cellspacing="0" width="100%">
+                <table id="messagesTable" class="table table-striped table-bordered" width="100%">
                     <thead>
                     <tr>
                         <th>ID</th>
diff --git a/network.php b/network.php
index c48426bc..400eb6da 100644
--- a/network.php
+++ b/network.php
@@ -29,7 +29,7 @@ $token = $_SESSION['token'];
         </div>
         <!-- /.box-header -->
         <div class="box-body">
-            <table id="network-entries" class="table table-striped table-bordered" cellspacing="0" width="100%">
+            <table id="network-entries" class="table table-striped table-bordered" width="100%">
                 <thead>
                     <tr>
                         <th>IP address</th>
diff --git a/queries.php b/queries.php
index 22e7dd27..6152e135 100644
--- a/queries.php
+++ b/queries.php
@@ -122,7 +122,7 @@ if(strlen($showing) > 0)
         </div>
         <!-- /.box-header -->
         <div class="box-body">
-            <table id="all-queries" class="table table-striped table-bordered" cellspacing="0" width="100%">
+            <table id="all-queries" class="table table-striped table-bordered" width="100%">
                 <thead>
                     <tr>
                         <th>Time</th>
diff --git a/settings.php b/settings.php
index c4a5f1e7..6d76f02a 100644
--- a/settings.php
+++ b/settings.php
@@ -699,8 +699,7 @@ if (isset($_GET['tab']) && in_array($_GET['tab'], array("sysadmin", "adlists", "
                                         <div class="row">
                                             <div class="col-md-12">
                                                 <label>Currently active DHCP leases</label>
-                                                <table id="DHCPLeasesTable" class="table table-striped table-bordered nowrap"
-                                                       cellspacing="0" width="100%">
+                                                <table id="DHCPLeasesTable" class="table table-striped table-bordered nowrap" width="100%">
                                                     <thead>
                                                         <tr>
                                                             <th>MAC address</th>
@@ -729,8 +728,7 @@ if (isset($_GET['tab']) && in_array($_GET['tab'], array("sysadmin", "adlists", "
                                             </div>
                                             <div class="col-md-12">
                                                 <label>Static DHCP leases configuration</label>
-                                                <table id="DHCPStaticLeasesTable" class="table table-striped table-bordered nowrap"
-                                                       cellspacing="0" width="100%">
+                                                <table id="DHCPStaticLeasesTable" class="table table-striped table-bordered nowrap" width="100%">
                                                     <thead>
                                                     <tr>
                                                         <th>MAC address</th>