diff --git a/lib/opcodes.py b/lib/opcodes.py
index 7203b8aa501c09b766c14d2c181b7e4f934b951d..87bcf057b20a7ec43687c8c13741f47d76c54801 100644
--- a/lib/opcodes.py
+++ b/lib/opcodes.py
@@ -201,7 +201,7 @@ class OpShutdownInstance(OpCode):
 
 class OpRebootInstance(OpCode):
   """Reboot an instance."""
-  OP_ID = "OP_INSTANCE_STARTUP"
+  OP_ID = "OP_INSTANCE_REBOOT"
   __slots__ = ["instance_name", "reboot_type", "extra_args",
                "ignore_secondaries" ]