diff --git a/common.inc b/common.inc
index 6b27fdd..42495a2 100644
--- a/common.inc
+++ b/common.inc
@@ -358,9 +358,9 @@
 
     config.lang {
       config.lang "en" ne {
-        config.lang
-        "calculate=lang:%s,"
-        bc.cmd dup length add sprintf
+        config.lang lang.getlocale
+            "calculate=lang:%s,"
+            bc.cmd dup length add sprintf
       } if
     } if