diff --git a/sys/x86/x86/mp_x86.c b/sys/x86/x86/mp_x86.c
index 3fcf7aa25152..929d54baf935 100644
--- a/sys/x86/x86/mp_x86.c
+++ b/sys/x86/x86/mp_x86.c
@@ -1007,10 +1007,10 @@ init_secondary_tail(void)
 	KASSERT(PCPU_GET(idlethread) != NULL, ("no idle thread"));
 	PCPU_SET(curthread, PCPU_GET(idlethread));
 
-	mca_init();
-
 	mtx_lock_spin(&ap_boot_mtx);
 
+	mca_init();
+
 	/* Init local apic for irq's */
 	lapic_setup(1);