diff --git a/tcl/init.tcl.in b/tcl/init.tcl.in
index dc618882..a46300b5 100644
--- a/tcl/init.tcl.in
+++ b/tcl/init.tcl.in
@@ -93,6 +93,7 @@ array set g_config_defs [list\
       0 {0 365} {} {} intbe}\
    pager {MODULES_PAGER {@pagercmd@} 0}\
    rcfile {MODULERCFILE <undef> 0}\
+   redirect_output {MODULES_REDIRECT_OUTPUT 1 0 {0 1}}\
    quarantine_support {MODULES_QUARANTINE_SUPPORT @quarantinesupport@ 0 {0\
       1}}\
    run_quarantine {MODULES_RUN_QUARANTINE <undef> 0}\