diff --git a/bitbake/lib/bb/event.py b/bitbake/lib/bb/event.py
index df020551e3..97668601a1 100644
--- a/bitbake/lib/bb/event.py
+++ b/bitbake/lib/bb/event.py
@@ -132,8 +132,14 @@ def print_ui_queue():
     if not _uiready:
         from bb.msg import BBLogFormatter
         # Flush any existing buffered content
-        sys.stdout.flush()
-        sys.stderr.flush()
+        try:
+            sys.stdout.flush()
+        except:
+            pass
+        try:
+            sys.stderr.flush()
+        except:
+            pass
         stdout = logging.StreamHandler(sys.stdout)
         stderr = logging.StreamHandler(sys.stderr)
         formatter = BBLogFormatter("%(levelname)s: %(message)s")