1 files changed, 6 insertions, 1 deletions
diff --git a/names/server.js b/names/server.js
index 9b57ce7..6cd82a1 100644
--- a/names/server.js
+++ b/names/server.js
@@ -938,7 +938,12 @@ Bun.serve({
         return json({ ok: true, revoked: n });
       }
       const token = posMintToken(key, body.currency);
-      return json({ token, name, domain, currency: posTokens()[token].currency });
+      // Currency is the merchant's, not the token's: a new token in CAD moves
+      // the terminals already paired to this name to CAD as well.
+      const { currency } = posTokens()[token];
+      for (const v of Object.values(posTokens())) if (v.key === key) v.currency = currency;
+      persist();
+      return json({ token, name, domain, currency });
     }
     // Operator bootstrap: mint a terminal token for any name.
     if (url.pathname === '/admin/pos/token' && req.method === 'POST') {