diff --git a/django/db/models/fields/__init__.py b/django/db/models/fields/__init__.py
index d7e19ad25bc..84c81f9e218 100644
--- a/django/db/models/fields/__init__.py
+++ b/django/db/models/fields/__init__.py
@@ -392,13 +392,13 @@ class Field(RegisterLookupMixin):
         return []
 
     def get_col(self, alias, output_field=None):
-        if output_field is None:
-            output_field = self
-        if alias != self.model._meta.db_table or output_field != self:
-            from django.db.models.expressions import Col
-            return Col(alias, self, output_field)
-        else:
+        if (
+            alias == self.model._meta.db_table and
+            (output_field is None or output_field == self)
+        ):
             return self.cached_col
+        from django.db.models.expressions import Col
+        return Col(alias, self, output_field)
 
     @cached_property
     def cached_col(self):