diff --git a/m4/virt-nss.m4 b/m4/virt-nss.m4
index 951a74e835..b519c36e85 100644
--- a/m4/virt-nss.m4
+++ b/m4/virt-nss.m4
@@ -58,7 +58,7 @@ AC_DEFUN([LIBVIRT_CHECK_NSS],[
     fi
 
     if test "x$with_nss_plugin" = "xyes" ; then
-      AC_DEFINE_UNQUOTED([NSS], 1, [whether nss plugin is enabled])
+      AC_DEFINE_UNQUOTED([WITH_NSS], 1, [whether nss plugin is enabled])
 
       AC_CHECK_TYPE([struct gaih_addrtuple],
         [AC_DEFINE([HAVE_STRUCT_GAIH_ADDRTUPLE], [1],
diff --git a/tests/nssmock.c b/tests/nssmock.c
index 62e8fa372a..b1c1aba957 100644
--- a/tests/nssmock.c
+++ b/tests/nssmock.c
@@ -18,7 +18,7 @@
 
 #include <config.h>
 
-#ifdef NSS
+#ifdef WITH_NSS
 # include "virmock.h"
 # include <sys/types.h>
 # include <dirent.h>
diff --git a/tests/nsstest.c b/tests/nsstest.c
index 514b4f7195..135f6b6c93 100644
--- a/tests/nsstest.c
+++ b/tests/nsstest.c
@@ -20,7 +20,7 @@
 
 #include "testutils.h"
 
-#ifdef NSS
+#ifdef WITH_NSS
 
 # include "libvirt_nss.h"
 # include "virsocket.h"