diff --git a/gluon/tools.py b/gluon/tools.py
index 23c99ff1..34edca0b 100644
--- a/gluon/tools.py
+++ b/gluon/tools.py
@@ -5605,9 +5605,6 @@ class Expose(object):
                          and file creation under `base`.
 
         """
-        # why would this not be callable? but otherwise tests do not pass
-        if current.session and callable(current.session.forget):
-            current.session.forget()
         self.follow_symlink_out = follow_symlink_out
         self.base = self.normalize_path(
             base or os.path.join(current.request.folder, 'static'))