diff --git a/instaloader/structures.py b/instaloader/structures.py
index e1d9f60..941b03c 100644
--- a/instaloader/structures.py
+++ b/instaloader/structures.py
@@ -415,6 +415,8 @@ class Post:
                     "shortcode": self.shortcode,
                     "__relay_internal__pv__PolarisAIGMMediaWebLabelEnabledrelayprovider": False,
                 },
+                # As the logged-out web app does.
+                web_api=not self._context.is_logged_in,
             )
             web_info = (resp.get("data") or {}).get("xdt_api__v1__media__shortcode__web_info") or {}
             items = web_info.get("items")