diff --git a/flask_log_request_id/request_id.py b/flask_log_request_id/request_id.py
index 9f38ea0..aa9f06f 100644
--- a/flask_log_request_id/request_id.py
+++ b/flask_log_request_id/request_id.py
@@ -15,13 +15,9 @@ def flask_ctx_get_request_id():
     Get request id from flask's G object
     :return: The id or None if not found.
     """
-    from flask import _app_ctx_stack as stack  # We do not support < Flask 0.9
-
-    if stack.top is None:
-        raise ExecutedOutsideContext()
-
-    g_object_attr = stack.top.app.config['LOG_REQUEST_ID_G_OBJECT_ATTRIBUTE']
-    return g.get(g_object_attr, None)
+    if flask.has_app_context():
+        g_object_attr = g.log_request_id_g_object_attribute
+        return g.get(g_object_attr, None)
 
 
 current_request_id = MultiContextRequestIdFetcher()
@@ -73,6 +69,7 @@ def _persist_request_id():
 
             To be used as a consumer of Flask.before_request event.
             """
+            g.log_request_id_g_object_attribute = app.config['LOG_REQUEST_ID_G_OBJECT_ATTRIBUTE']
             g_object_attr = current_app.config['LOG_REQUEST_ID_G_OBJECT_ATTRIBUTE']
 
             setattr(g, g_object_attr, self._request_id_parser())