diff --git a/hw/input/virtio-input-hid.c b/hw/input/virtio-input-hid.c
index e78faec0b1..a5917c2754 100644
--- a/hw/input/virtio-input-hid.c
+++ b/hw/input/virtio-input-hid.c
@@ -147,6 +147,8 @@ static const unsigned int keymap_button[INPUT_BUTTON__MAX] = {
     [INPUT_BUTTON_MIDDLE]            = BTN_MIDDLE,
     [INPUT_BUTTON_WHEEL_UP]          = BTN_GEAR_UP,
     [INPUT_BUTTON_WHEEL_DOWN]        = BTN_GEAR_DOWN,
+    [INPUT_BUTTON_SIDE]              = BTN_SIDE,
+    [INPUT_BUTTON_EXTRA]             = BTN_EXTRA,
 };
 
 static const unsigned int axismap_rel[INPUT_AXIS__MAX] = {