diff --git a/include/tests_authentication b/include/tests_authentication
index 4ba9c6d0..959da5f1 100644
--- a/include/tests_authentication
+++ b/include/tests_authentication
@@ -341,7 +341,7 @@
         else
             Display --indent 2 --text "- Query system users (non daemons)" --result "${STATUS_DONE}" --color GREEN
             for I in ${FIND}; do
-                if [ -z "${I}" ]; then
+                if [ ! -z "${I}" ]; then
                     LogText "Real user: ${I}"
                     Report "real_user[]=${I}"
                 fi