diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index c64aa81a83..e05d69a2c0 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -3032,7 +3032,7 @@ static int vtd_iommu_notify_flag_changed(IOMMUMemoryRegion *iommu,
 
     /* TODO: add support for VFIO and vhost users */
     if (s->snoop_control) {
-        error_setg_errno(errp, -ENOTSUP,
+        error_setg_errno(errp, ENOTSUP,
                          "Snoop Control with vhost or VFIO is not supported");
         return -ENOTSUP;
     }