diff --git a/src/machine/machine_table.c b/src/machine/machine_table.c
index ba3c6ca88..9b13c9234 100644
--- a/src/machine/machine_table.c
+++ b/src/machine/machine_table.c
@@ -5484,8 +5484,8 @@ const machine_t machines[] = {
         .cpu = {
             .package = CPU_PKG_386DX | CPU_PKG_SOCKET1,
             .block = CPU_BLOCK_NONE,
-            .min_bus = 0,
-            .max_bus = 0,
+            .min_bus = 25000000,
+            .max_bus = 66666667,
             .min_voltage = 5000,
             .max_voltage = 5000,
             .min_multi = 0,