diff --git a/libfprint/drivers/synaptics/synaptics.c b/libfprint/drivers/synaptics/synaptics.c
index b89989b2..1c6243fd 100644
--- a/libfprint/drivers/synaptics/synaptics.c
+++ b/libfprint/drivers/synaptics/synaptics.c
@@ -225,6 +225,7 @@ cmd_interrupt_cb (FpiUsbTransfer *transfer,
     }
   else
     {
+      fpi_device_critical_leave (device);
       fpi_usb_transfer_submit (fpi_usb_transfer_ref (transfer),
                                0,
                                NULL,