diff --git a/IPython/core/shellapp.py b/IPython/core/shellapp.py
index 45e78aa..6d50e0c 100644
--- a/IPython/core/shellapp.py
+++ b/IPython/core/shellapp.py
@@ -198,6 +198,8 @@ class InteractiveShellApp(Configurable):
     )
     shell = Instance('IPython.core.interactiveshell.InteractiveShellABC',
                      allow_none=True)
+    # whether interact-loop should start
+    interact = Bool(True)
     
     user_ns = Instance(dict, args=None, allow_none=True)
     def _user_ns_changed(self, name, old, new):
diff --git a/IPython/terminal/ipapp.py b/IPython/terminal/ipapp.py
index fe3d008..ddc38d4 100755
--- a/IPython/terminal/ipapp.py
+++ b/IPython/terminal/ipapp.py
@@ -272,7 +272,6 @@ class TerminalIPythonApp(BaseIPythonApplication, InteractiveShellApp):
     _module_to_run_changed = _file_to_run_changed
 
     # internal, not-configurable
-    interact=Bool(True)
     something_to_run=Bool(False)
 
     def parse_command_line(self, argv=None):