diff --git a/module/Olcs/src/Controller/Licence/Vehicle/RemoveVehicleController.php b/module/Olcs/src/Controller/Licence/Vehicle/RemoveVehicleController.php
index bafb97cc2..b5e6337fb 100644
--- a/module/Olcs/src/Controller/Licence/Vehicle/RemoveVehicleController.php
+++ b/module/Olcs/src/Controller/Licence/Vehicle/RemoveVehicleController.php
@@ -119,7 +119,7 @@ protected function alterSearchForm(): void
         $formData = $this->getRequest()->getQuery();
         $form->setData($formData);
 
-        if (array_key_exists('vehicleSearch', $formData)) {
+        if (array_key_exists('vehicleSearch', $formData->toArray())) {
             $form->isValid();
         }
 
diff --git a/module/Olcs/src/Controller/Licence/Vehicle/Reprint/ReprintLicenceVehicleDiscController.php b/module/Olcs/src/Controller/Licence/Vehicle/Reprint/ReprintLicenceVehicleDiscController.php
index 1128f1dfc..c8fa46c97 100644
--- a/module/Olcs/src/Controller/Licence/Vehicle/Reprint/ReprintLicenceVehicleDiscController.php
+++ b/module/Olcs/src/Controller/Licence/Vehicle/Reprint/ReprintLicenceVehicleDiscController.php
@@ -141,7 +141,7 @@ protected function configureSearchFormForIndex(Form $form, Request $request): vo
         $formData = $request->getQuery();
         $form->setData($formData);
 
-        if (array_key_exists('vehicleSearch', $formData)) {
+        if (array_key_exists('vehicleSearch', $formData->toArray())) {
             $form->isValid();
         }
 
diff --git a/module/Olcs/src/Controller/Licence/Vehicle/TransferVehicleController.php b/module/Olcs/src/Controller/Licence/Vehicle/TransferVehicleController.php
index 60dfe8358..01a08c39f 100644
--- a/module/Olcs/src/Controller/Licence/Vehicle/TransferVehicleController.php
+++ b/module/Olcs/src/Controller/Licence/Vehicle/TransferVehicleController.php
@@ -215,7 +215,7 @@ protected function alterSearchForm(): void
         $formData = $this->getRequest()->getQuery();
         $form->setData($formData);
 
-        if (array_key_exists('vehicleSearch', $formData)) {
+        if (array_key_exists('vehicleSearch', $formData->toArray())) {
             $form->isValid();
         }