diff --git a/endpoints/lib/vboxServiceWrappers.php b/endpoints/lib/vboxServiceWrappers.php
index b9ff86b..438ceaa 100644
--- a/endpoints/lib/vboxServiceWrappers.php
+++ b/endpoints/lib/vboxServiceWrappers.php
@@ -1966,7 +1966,7 @@ class IMachine extends VBox_ManagedObject
         $request->name = $arg_name;
         $request->controllerPort = $arg_controllerPort;
         $request->device = $arg_device;
-        $request->temporaryEject = $arg_temporaryEject;
+        $request->temporaryEject = $arg_temporaryEject === null ? false : $arg_temporaryEject;
         $response = $this->connection->__soapCall('IMachine_temporaryEjectDevice', array((array)$request));
         return ;
     }
@@ -1978,7 +1978,7 @@ class IMachine extends VBox_ManagedObject
         $request->name = $arg_name;
         $request->controllerPort = $arg_controllerPort;
         $request->device = $arg_device;
-        $request->nonRotational = $arg_nonRotational;
+        $request->nonRotational = $arg_nonRotational === null ? false : $arg_nonRotational;
         $response = $this->connection->__soapCall('IMachine_nonRotationalDevice', array((array)$request));
         return ;
     }
@@ -2002,7 +2002,7 @@ class IMachine extends VBox_ManagedObject
         $request->name = $arg_name;
         $request->controllerPort = $arg_controllerPort;
         $request->device = $arg_device;
-        $request->hotPluggable = $arg_hotPluggable;
+        $request->hotPluggable = $arg_hotPluggable === null ? false : $arg_hotPluggable;
         $response = $this->connection->__soapCall('IMachine_setHotPluggableForDevice', array((array)$request));
         return ;
     }