diff --git a/src/libvirt-admin.c b/src/libvirt-admin.c
index 54af90cc918fe4045701cd7ebad7b3ce75542ee5..6577c876937b61f67c110fef9a9b44e550fa4d16 100644
--- a/src/libvirt-admin.c
+++ b/src/libvirt-admin.c
@@ -121,10 +121,10 @@ getSocketPath(virURIPtr uri)
     }
 
     if (!sock_path) {
-        if (STRNEQ(uri->scheme, "libvirtd")) {
+        if (STRNEQ_NULLABLE(uri->scheme, "libvirtd")) {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                            _("Unsupported URI scheme '%s'"),
-                           uri->scheme);
+                           NULLSTR(uri->scheme));
             goto error;
         }
         if (STREQ_NULLABLE(uri->path, "/system")) {