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-rw-r--r--cloudinit/handlers/boot_hook.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/cloudinit/handlers/boot_hook.py b/cloudinit/handlers/boot_hook.py
index fa675f09..456b8020 100644
--- a/cloudinit/handlers/boot_hook.py
+++ b/cloudinit/handlers/boot_hook.py
@@ -63,7 +63,7 @@ class BootHookPartHandler(handlers.Handler):
filepath = self._write_part(payload, filename)
try:
env = os.environ.copy()
- if self.instance_id:
+ if self.instance_id is not None:
env['INSTANCE_ID'] = str(self.instance_id)
util.subp([filepath], env=env)
except util.ProcessExecutionError: