diff --git a/src/Resources/contao/dca/tl_leaflet_control.php b/src/Resources/contao/dca/tl_leaflet_control.php
index c2e594f..c0ef6fc 100644
--- a/src/Resources/contao/dca/tl_leaflet_control.php
+++ b/src/Resources/contao/dca/tl_leaflet_control.php
@@ -80,7 +80,7 @@ $GLOBALS['TL_DCA']['tl_leaflet_control'] = [
                 ],
                 'toolkit'         => [
                     'state_button' => [
-                        'stateColumn' => ['active'],
+                        'stateColumn' => 'active',
                     ],
                 ],
             ],
diff --git a/src/Resources/contao/dca/tl_leaflet_icon.php b/src/Resources/contao/dca/tl_leaflet_icon.php
index f42a10e..aa080fc 100644
--- a/src/Resources/contao/dca/tl_leaflet_icon.php
+++ b/src/Resources/contao/dca/tl_leaflet_icon.php
@@ -91,7 +91,7 @@ $GLOBALS['TL_DCA']['tl_leaflet_icon'] = [
                 ],
                 'toolkit'         => [
                     'state_button' => [
-                        'stateColumn' => ['active'],
+                        'stateColumn' => 'active',
                     ],
                 ],
             ],
diff --git a/src/Resources/contao/dca/tl_leaflet_layer.php b/src/Resources/contao/dca/tl_leaflet_layer.php
index 0af696c..8de855b 100644
--- a/src/Resources/contao/dca/tl_leaflet_layer.php
+++ b/src/Resources/contao/dca/tl_leaflet_layer.php
@@ -118,7 +118,7 @@ $GLOBALS['TL_DCA']['tl_leaflet_layer'] = [
                 ],
                 'toolkit'         => [
                     'state_button' => [
-                        'stateColumn' => ['active'],
+                        'stateColumn' => 'active',
                     ],
                 ],
             ],
diff --git a/src/Resources/contao/dca/tl_leaflet_marker.php b/src/Resources/contao/dca/tl_leaflet_marker.php
index 099a385..a5d9018 100644
--- a/src/Resources/contao/dca/tl_leaflet_marker.php
+++ b/src/Resources/contao/dca/tl_leaflet_marker.php
@@ -91,7 +91,7 @@ $GLOBALS['TL_DCA']['tl_leaflet_marker'] = [
                 ],
                 'toolkit'         => [
                     'state_button' => [
-                        'stateColumn' => ['active'],
+                        'stateColumn' => 'active',
                     ],
                 ],
             ],
diff --git a/src/Resources/contao/dca/tl_leaflet_popup.php b/src/Resources/contao/dca/tl_leaflet_popup.php
index dff2b01..173db63 100644
--- a/src/Resources/contao/dca/tl_leaflet_popup.php
+++ b/src/Resources/contao/dca/tl_leaflet_popup.php
@@ -91,7 +91,7 @@ $GLOBALS['TL_DCA']['tl_leaflet_popup'] = [
                 ],
                 'toolkit'         => [
                     'state_button' => [
-                        'stateColumn' => ['active'],
+                        'stateColumn' => 'active',
                     ],
                 ],
             ],
diff --git a/src/Resources/contao/dca/tl_leaflet_style.php b/src/Resources/contao/dca/tl_leaflet_style.php
index f929d5c..01a28f5 100644
--- a/src/Resources/contao/dca/tl_leaflet_style.php
+++ b/src/Resources/contao/dca/tl_leaflet_style.php
@@ -91,7 +91,7 @@ $GLOBALS['TL_DCA']['tl_leaflet_style'] = [
                 ],
                 'toolkit'         => [
                     'state_button' => [
-                        'stateColumn' => ['active'],
+                        'stateColumn' => 'active',
                     ],
                 ],
             ],
diff --git a/src/Resources/contao/dca/tl_leaflet_vector.php b/src/Resources/contao/dca/tl_leaflet_vector.php
index 9883a2c..a5866a2 100644
--- a/src/Resources/contao/dca/tl_leaflet_vector.php
+++ b/src/Resources/contao/dca/tl_leaflet_vector.php
@@ -97,7 +97,7 @@ $GLOBALS['TL_DCA']['tl_leaflet_vector'] = [
                 ],
                 'toolkit'         => [
                     'state_button' => [
-                        'stateColumn' => ['active'],
+                        'stateColumn' => 'active',
                     ],
                 ],
             ],