diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index ad482d0ee9703ec71c4c32503c1c030679a34b36..b5b06451269da602dbe2c1329a4314455135cdc8 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -837,7 +837,7 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
                 goto cleanup;
             }
 
-            if (qemuDomainNamespaceAvailable(ns) < 0) {
+            if (!qemuDomainNamespaceAvailable(ns)) {
                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                                _("%s namespace is not available"),
                                namespaces[i]);