diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp
index 7f8522d5e..011f6e586 100644
--- a/src/v4l2/v4l2_camera_proxy.cpp
+++ b/src/v4l2/v4l2_camera_proxy.cpp
@@ -997,6 +997,9 @@ int V4L2CameraProxy::ioctl(V4L2CameraFile *file, unsigned long longRequest, void
 	case VIDIOC_QUERYBUF:
 		ret = vidioc_querybuf(file, static_cast<struct v4l2_buffer *>(arg));
 		break;
+	case VIDIOC_PREPARE_BUF:
+		ret = vidioc_prepare_buf(file, static_cast<struct v4l2_buffer *>(arg));
+		break;
 	case VIDIOC_QBUF:
 		ret = vidioc_qbuf(file, static_cast<struct v4l2_buffer *>(arg));
 		break;