diff --git a/src/machine/machine_table.c b/src/machine/machine_table.c
index bf4c7fa1b..a636ca3ba 100644
--- a/src/machine/machine_table.c
+++ b/src/machine/machine_table.c
@@ -1734,7 +1734,7 @@ const machine_t machines[] = {
         .ram = {
             .min = 256,
             .max = 640,
-            .step = 256
+            .step = 64
         },
         .nvrmask = 0,
         .kbc_device = &keyboard_xt_device,