diff --git a/target/mips/cpu.h b/target/mips/cpu.h
index a5381b7555..21daf501ce 100644
--- a/target/mips/cpu.h
+++ b/target/mips/cpu.h
@@ -536,6 +536,7 @@ struct CPUMIPSState {
  */
     target_ulong CP0_Context;
     target_ulong CP0_KScratch[MIPS_KSCRATCH_NUM];
+    int32_t CP0_MemoryMapID;
 /*
  * CP0 Register 5
  */
diff --git a/target/mips/machine.c b/target/mips/machine.c
index 111d7c32b1..1341ab1df9 100644
--- a/target/mips/machine.c
+++ b/target/mips/machine.c
@@ -214,8 +214,8 @@ const VMStateDescription vmstate_tlb = {
 
 const VMStateDescription vmstate_mips_cpu = {
     .name = "cpu",
-    .version_id = 16,
-    .minimum_version_id = 16,
+    .version_id = 17,
+    .minimum_version_id = 17,
     .post_load = cpu_post_load,
     .fields = (VMStateField[]) {
         /* Active TC */
@@ -253,6 +253,7 @@ const VMStateDescription vmstate_mips_cpu = {
         VMSTATE_UINT64(env.CP0_EntryLo0, MIPSCPU),
         VMSTATE_UINT64(env.CP0_EntryLo1, MIPSCPU),
         VMSTATE_UINTTL(env.CP0_Context, MIPSCPU),
+        VMSTATE_INT32(env.CP0_MemoryMapID, MIPSCPU),
         VMSTATE_INT32(env.CP0_PageMask, MIPSCPU),
         VMSTATE_INT32(env.CP0_PageGrain, MIPSCPU),
         VMSTATE_UINTTL(env.CP0_SegCtl0, MIPSCPU),