[#wallet-MigrationData-master_key]
= xref:wallet.adoc[wallet]::xref:wallet/MigrationData.adoc[MigrationData]::master_key
:relfileprefix: ../../
:mrdocs:

The master key derived from the legacy wallet.

== Synopsis

Declared in `<wallet/scriptpubkeyman.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:CExtKey.adoc[CExtKey] master_key;
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