diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
index f625cbcd88..6ce208e80e 100644
--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
@@ -4945,7 +4945,7 @@ virCgroupGetPercpuStats(virCgroupPtr group ATTRIBUTE_UNUSED,
                         unsigned int nparams ATTRIBUTE_UNUSED,
                         int start_cpu ATTRIBUTE_UNUSED,
                         unsigned int ncpus ATTRIBUTE_UNUSED,
-                        unsigned int nvcpupids ATTRIBUTE_UNUSED)
+                        virBitmapPtr guestvcpus ATTRIBUTE_UNUSED)
 {
     virReportSystemError(ENOSYS, "%s",
                          _("Control groups not supported on this platform"));