1 files changed, 4 insertions, 2 deletions

diff --git a/loginutils/su.c b/loginutils/su.c
index a3f7ed8a0..6356631b8 100644
--- a/loginutils/su.c
+++ b/loginutils/su.c
@@ -102,8 +102,10 @@ int su_main(int argc UNUSED_PARAM, char **argv)
                 opt_shell = pw->pw_shell;
 
         change_identity(pw);
-        /* setup_environment params: shell, clear_env, change_env, pw */
-        setup_environment(opt_shell, flags & SU_OPT_l, !(flags & SU_OPT_mp), pw);
+        setup_environment(opt_shell,
+                        ((flags & SU_OPT_l) / SU_OPT_l * SETUP_ENV_CLEARENV)
+                        + (!(flags & SU_OPT_mp) * SETUP_ENV_CHANGEENV),
+                        pw);
         IF_SELINUX(set_current_security_context(NULL);)
 
         /* Never returns */