1 files changed, 1 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index 4367ac89..15113a6e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -550,13 +550,13 @@ static struct mu_option mailfromd_options[] = {
           N_("add the directory DIR to the list of directories to be "
              "searched for header files"),
           mu_c_string, NULL, opt_include_dir },
         { "port", 'p', N_("STRING"), MU_OPTION_DEFAULT,
           N_("set communication socket"),
           mu_c_string, NULL, opt_port },
-        { "mtasim", 0, NULL, MU_OPTION_DEFAULT,
+        { "mtasim", 0, NULL, MU_OPTION_IMMEDIATE,
           N_("run in mtasim compatibility mode"),
           mu_c_string, NULL, opt_mtasim },
         { "optimize", 'O', N_("LEVEL"), MU_OPTION_ARG_OPTIONAL,
           N_("set code optimization level"),
           mu_c_string, NULL, opt_optimize },
         { "variable", 'v', N_("VAR=VALUE"), MU_OPTION_DEFAULT,