diff --git a/kvm_sys/src/lib.rs b/kvm_sys/src/lib.rs
index c7bdf70b26..fc0705a564 100644
--- a/kvm_sys/src/lib.rs
+++ b/kvm_sys/src/lib.rs
@@ -45,7 +45,7 @@ pub mod x86 {
     ioctl_ior_nr!(KVM_GET_XSAVE, KVMIO, 0xa4, kvm_xsave);
     ioctl_iow_nr!(KVM_SET_XSAVE, KVMIO, 0xa5, kvm_xsave);
     ioctl_ior_nr!(KVM_GET_XCRS, KVMIO, 0xa6, kvm_xcrs);
-    ioctl_iowr_nr!(KVM_SET_XCRS, KVMIO, 0xa7, kvm_xcrs);
+    ioctl_iow_nr!(KVM_SET_XCRS, KVMIO, 0xa7, kvm_xcrs);
 }
 
 #[cfg(any(target_arch = "arm", target_arch = "aarch64"))]