From 4f99c77abee714e6c4e5b7182d8d06531a6d74d7 Mon Sep 17 00:00:00 2001
From: Riccardo Casatta <riccardo@casatta.it>
Date: Mon, 16 Nov 2020 12:06:48 +0100
Subject: [PATCH] [sync] check last derivation in cache to avoid recomputation

---
 src/wallet/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/wallet/mod.rs b/src/wallet/mod.rs
index 79ce7789..94c5a122 100644
--- a/src/wallet/mod.rs
+++ b/src/wallet/mod.rs
@@ -1268,7 +1268,7 @@ where
         if self
             .database
             .borrow()
-            .get_script_pubkey_from_path(ScriptType::External, max_address)?
+            .get_script_pubkey_from_path(ScriptType::External, max_address.saturating_sub(1))?
             .is_none()
         {
             run_setup = true;