diff --git a/hw/char/serial.c b/hw/char/serial.c
index 4386adabd4669f6c410363e677af59ac1638a298..97f71879ff2ac89225f74f3d594f2bcfd9f0dc60 100644
--- a/hw/char/serial.c
+++ b/hw/char/serial.c
@@ -1120,7 +1120,6 @@ static const TypeInfo serial_mm_info = {
     .class_init = serial_mm_class_init,
     .instance_init = serial_mm_instance_init,
     .instance_size = sizeof(SerialMM),
-    .class_init = serial_mm_class_init,
 };
 
 static void serial_register_types(void)