diff --git a/brozzler/browser.py b/brozzler/browser.py
index 4a8f608..f6fbdbd 100644
--- a/brozzler/browser.py
+++ b/brozzler/browser.py
@@ -612,9 +612,9 @@ class Browser:
             self._wait_for(
                     lambda: self.websock_thread.received_result(msg_id),
                     timeout=timeout)
-        except brozzler.browser.BrowsingTimeout:
+        except brozzler.browser.BrowsingTimeout as e:
             self.logger.error(
-                    'time out trying to extract tertiary assets')
+                    'browsing timeout extracting tertiary assets: %s', e)
             return frozenset()
         message = self.websock_thread.pop_result(msg_id)
         if ('result' in message and 'result' in message['result']
diff --git a/brozzler/worker.py b/brozzler/worker.py
index 5ce5499..43d66b1 100644
--- a/brozzler/worker.py
+++ b/brozzler/worker.py
@@ -408,6 +408,8 @@ class BrozzlerWorker:
                 # same proxy again next time
                 logging.error(
                         'proxy error (self._proxy=%r)', self._proxy, exc_info=1)
+        except brozzler.browser.BrowsingTimeout as e:
+            self.logger.error('browsing timeout error: %s', e)
         except:
             self.logger.critical("unexpected exception", exc_info=True)
         finally: