1 files changed, 1 insertions, 1 deletions

diff --git a/bitbake/lib/bb/command.py b/bitbake/lib/bb/command.py
index 0559ffc07c..caa3e4d457 100644
--- a/bitbake/lib/bb/command.py
+++ b/bitbake/lib/bb/command.py
@@ -110,7 +110,7 @@ class Command:
             return False
         except SystemExit as exc:
             arg = exc.args[0]
-            if isinstance(arg, basestring):
+            if isinstance(arg, str):
                 self.finishAsyncCommand(arg)
             else:
                 self.finishAsyncCommand("Exited with %s" % arg)