diff --git a/bookwyrm/settings.py b/bookwyrm/settings.py
index 234282ca0..653adbc6e 100644
--- a/bookwyrm/settings.py
+++ b/bookwyrm/settings.py
@@ -365,7 +365,7 @@ if (USE_HTTPS and PORT == 443) or (not USE_HTTPS and PORT == 80):
     NETLOC = DOMAIN
 else:
     NETLOC = f"{DOMAIN}:{PORT}"
-BASE_URL = f"{PROTOCOL}://{NETLOC}"
+BASE_URL = f"{PROTOCOL}://{NETLOC}/bookwyrm"
 CSRF_TRUSTED_ORIGINS = [BASE_URL]
 
 USER_AGENT = f"BookWyrm (BookWyrm/{VERSION}; +{BASE_URL})"