diff --git a/support/functions/_cmd_build b/support/functions/_cmd_build
index 8b4d8d5..eaab58c 100644
--- a/support/functions/_cmd_build
+++ b/support/functions/_cmd_build
@@ -141,7 +141,7 @@ fi
 
 if [ ! "$CUSTOM_CONFDIR" == "not_set" ];
 then
-    CONFDIR="$_oscamconfdir_custom"
+    CONFDIR="$CUSTOM_CONFDIR"
     cdtag="${r_l}custom CONF_DIR=$CUSTOM_CONFDIR (via CUSTOM_CONFDIR)"
 fi