diff --git a/qemu/target/i386/cpu.h b/qemu/target/i386/cpu.h
index af3d053e..2efd21c2 100644
--- a/qemu/target/i386/cpu.h
+++ b/qemu/target/i386/cpu.h
@@ -1486,6 +1486,7 @@ typedef struct CPUX86State {
     bool tsc_valid;
     int64_t tsc_khz;
     int64_t user_tsc_khz; /* for sanity check only */
+    uint64_t apic_bus_freq;
     void *kvm_xsave_buf;
 
     uint64_t mcg_cap;