diff --git a/hw/display/vmware_vga.c b/hw/display/vmware_vga.c
index fd3569d8c9..ec41681600 100644
--- a/hw/display/vmware_vga.c
+++ b/hw/display/vmware_vga.c
@@ -1241,6 +1241,10 @@ static const MemoryRegionOps vmsvga_io_ops = {
     .valid = {
         .min_access_size = 4,
         .max_access_size = 4,
+        .unaligned = true,
+    },
+    .impl = {
+        .unaligned = true,
     },
 };