diff --git a/src/rougail/utils.py b/src/rougail/utils.py
index f03bf1872..62bce6bcb 100644
--- a/src/rougail/utils.py
+++ b/src/rougail/utils.py
@@ -85,6 +85,7 @@ def get_jinja_variable_to_param(
 ):
     try:
         env = SandboxedEnvironment(loader=DictLoader({"tmpl": jinja_text}))
+        env.add_extension('jinja2.ext.do')
         env.filters = functions
         parsed_content = Parser(env, jinja_text, "", "").parse()
 
@@ -100,7 +101,7 @@ def get_jinja_variable_to_param(
         for g in parsed_content.find_all(Getattr):
             variables.add(recurse_getattr(g))
     except TemplateSyntaxError as err:
-        msg = _('error in jinja "{0}" for the variable "{1}": {2}').format(
+        msg = _('error for the variable "{1}" in jinja "{0}": {2}').format(
             jinja_text, current_path, err
         )
         raise DictConsistencyError(msg, 39, xmlfiles) from err