diff --git a/xen/arch/x86/hvm/ioreq.c b/xen/arch/x86/hvm/ioreq.c
index 5c3d0c69aa..d6491df8e7 100644
--- a/xen/arch/x86/hvm/ioreq.c
+++ b/xen/arch/x86/hvm/ioreq.c
@@ -29,7 +29,7 @@ bool arch_ioreq_complete_mmio(void)
     return handle_mmio();
 }
 
-#ifdef CONFIG_VCPU_ARCH_IOREQ_COMPLETION
+#ifdef CONFIG_ARCH_VCPU_IOREQ_COMPLETION
 bool arch_vcpu_ioreq_completion(enum vio_completion completion)
 {
     switch ( completion )
diff --git a/xen/include/xen/ioreq.h b/xen/include/xen/ioreq.h
index 29a17e8ff5..4f3c6b598d 100644
--- a/xen/include/xen/ioreq.h
+++ b/xen/include/xen/ioreq.h
@@ -112,7 +112,7 @@ int ioreq_server_dm_op(struct xen_dm_op *op, struct domain *d, bool *const_op);
 
 bool arch_ioreq_complete_mmio(void);
 
-#ifdef CONFIG_VCPU_ARCH_IOREQ_COMPLETION
+#ifdef CONFIG_ARCH_VCPU_IOREQ_COMPLETION
 bool arch_vcpu_ioreq_completion(enum vio_completion completion);
 #else
 static inline bool arch_vcpu_ioreq_completion(enum vio_completion completion)