diff --git a/qemu/target/i386/cpu.c b/qemu/target/i386/cpu.c
index 8626ea92..f7935490 100644
--- a/qemu/target/i386/cpu.c
+++ b/qemu/target/i386/cpu.c
@@ -4803,6 +4803,7 @@ static void x86_cpu_initfn(struct uc_struct *uc, Object *obj, void *opaque)
     X86CPUClass *xcc = X86_CPU_GET_CLASS(uc, obj);
     CPUX86State *env = &cpu->env;
 
+    env->nr_dies = 1;
     cpu_set_cpustate_pointers(cpu);
     cpu_exec_init(cs, &error_abort, opaque);
 
diff --git a/qemu/target/i386/cpu.h b/qemu/target/i386/cpu.h
index 854dcc89..56862804 100644
--- a/qemu/target/i386/cpu.h
+++ b/qemu/target/i386/cpu.h
@@ -1298,6 +1298,8 @@ typedef struct CPUX86State {
 
     TPRAccess tpr_access_type;
 
+    unsigned nr_dies;
+
     // Unicorn engine
     struct uc_struct *uc;
 } CPUX86State;