diff --git a/sqladmin/forms.py b/sqladmin/forms.py
index 1328e516..47076298 100644
--- a/sqladmin/forms.py
+++ b/sqladmin/forms.py
@@ -612,7 +612,11 @@ async def get_model_form(
     attributes = []
     names = only or mapper.attrs.keys()
     for name in names:
-        if exclude and name in exclude:
+        if (
+            exclude
+            and name in exclude
+            or isinstance(mapper.attrs[name], MappedSQLExpression)
+        ):
             continue
         attributes.append((name, mapper.attrs[name]))