diff --git a/src/libvirt.c b/src/libvirt.c
index 757bfa8d00..955e761ff2 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -3246,7 +3246,7 @@ virDomainShutdownFlags(virDomainPtr domain, unsigned int flags)
 {
     virConnectPtr conn;
 
-    VIR_DOMAIN_DEBUG(domain);
+    VIR_DOMAIN_DEBUG(domain, "flags=%u", flags);
 
     virResetLastError();