diff --git a/src/cfnlint/template/transforms/_language_extensions.py b/src/cfnlint/template/transforms/_language_extensions.py
index 3733542626..060309e643 100644
--- a/src/cfnlint/template/transforms/_language_extensions.py
+++ b/src/cfnlint/template/transforms/_language_extensions.py
@@ -339,7 +339,7 @@ def value(
             ):
                 for k, v in cfn.template.get("Mappings", {}).items():
                     if isinstance(v, dict):
-                        if t_map[1].value(cfn) in v:
+                        if t_map[1].value(cfn, params) in v:
                             t_map[0] = _ForEachValue.create(k)
                             mapping = v
                             break