diff --git a/chardev/msmouse.c b/chardev/msmouse.c
index eb9231dcdb988fa9c0ca2d61f2ae5ebfd932ab43..2cc1b16561dbb18954940cefa2e53a5ed8794c8d 100644
--- a/chardev/msmouse.c
+++ b/chardev/msmouse.c
@@ -146,7 +146,9 @@ static void char_msmouse_finalize(Object *obj)
 {
     MouseChardev *mouse = MOUSE_CHARDEV(obj);
 
-    qemu_input_handler_unregister(mouse->hs);
+    if (mouse->hs) {
+        qemu_input_handler_unregister(mouse->hs);
+    }
 }
 
 static QemuInputHandler msmouse_handler = {
diff --git a/chardev/wctablet.c b/chardev/wctablet.c
index e8b292c43ca782e9b9e7ce3a1f338733ac3fe725..43bdf6b608350e0cd3fd0595befe3bf3226f6023 100644
--- a/chardev/wctablet.c
+++ b/chardev/wctablet.c
@@ -319,7 +319,9 @@ static void wctablet_chr_finalize(Object *obj)
 {
     TabletChardev *tablet = WCTABLET_CHARDEV(obj);
 
-    qemu_input_handler_unregister(tablet->hs);
+    if (tablet->hs) {
+        qemu_input_handler_unregister(tablet->hs);
+    }
 }
 
 static void wctablet_chr_open(Chardev *chr,