diff --git a/brozzler/__init__.py b/brozzler/__init__.py
index 35abfa3..7798e5f 100644
--- a/brozzler/__init__.py
+++ b/brozzler/__init__.py
@@ -180,7 +180,7 @@ class ThreadExceptionGate:
                     "exception already pending for thread, discarding",
                     pending_exception=self.pending_exception,
                     thread=self.thread,
-                    exception=e,
+                    discarded_exception=e,
                 )
             else:
                 self.pending_exception = e
diff --git a/brozzler/browser.py b/brozzler/browser.py
index c0fb71f..a5fff4e 100644
--- a/brozzler/browser.py
+++ b/brozzler/browser.py
@@ -292,7 +292,7 @@ class WebsockReceiverThread(threading.Thread):
                     message["params"]["message"]["text"],
                 )
             elif message["method"] == "Runtime.exceptionThrown":
-                self.logger.debug("uncaught exception", exception=message)
+                self.logger.debug("uncaught exception", message=message)
             elif message["method"] == "Page.javascriptDialogOpening":
                 self._javascript_dialog_opening(message)
             elif (
diff --git a/brozzler/robots.py b/brozzler/robots.py
index b3053b9..0c9d699 100644
--- a/brozzler/robots.py
+++ b/brozzler/robots.py
@@ -122,6 +122,6 @@ def is_permitted_by_robots(site, url, proxy=None):
             structlog.get_logger(logger_name=__name__).warning(
                 "returning true (permitted) after problem fetching " "robots.txt",
                 url=url,
-                exception=e,
+                raised_exception=e,
             )
             return True