diff --git a/.tx/config b/.tx/config
index c4fe7cc324d..e64f73ae33d 100644
--- a/.tx/config
+++ b/.tx/config
@@ -1,7 +1,7 @@
 [main]
 host = https://www.transifex.com
 
-[bitcoin.qt-translation-023x]
+[o:bitcoin:p:bitcoin:r:qt-translation-023x]
 file_filter = src/qt/locale/bitcoin_<lang>.xlf
 source_file = src/qt/locale/bitcoin_en.xlf
 source_lang = en
diff --git a/src/rpc/misc.cpp b/src/rpc/misc.cpp
index 2dace52777c..5a8cc8fa788 100644
--- a/src/rpc/misc.cpp
+++ b/src/rpc/misc.cpp
@@ -284,7 +284,7 @@ static RPCHelpMan deriveaddresses()
 
     UniValue addresses(UniValue::VARR);
 
-    for (int i = range_begin; i <= range_end; ++i) {
+    for (int64_t i = range_begin; i <= range_end; ++i) {
         FlatSigningProvider provider;
         std::vector<CScript> scripts;
         if (!desc->Expand(i, key_provider, scripts, provider)) {
diff --git a/test/functional/rpc_deriveaddresses.py b/test/functional/rpc_deriveaddresses.py
index 42d7d59d563..a69326736d7 100755
--- a/test/functional/rpc_deriveaddresses.py
+++ b/test/functional/rpc_deriveaddresses.py
@@ -44,6 +44,13 @@ class DeriveaddressesTest(BitcoinTestFramework):
         combo_descriptor = descsum_create("combo(tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/1/1/0)")
         assert_equal(self.nodes[0].deriveaddresses(combo_descriptor), ["mtfUoUax9L4tzXARpw1oTGxWyoogp52KhJ", "mtfUoUax9L4tzXARpw1oTGxWyoogp52KhJ", address, "2NDvEwGfpEqJWfybzpKPHF2XH3jwoQV3D7x"])
 
+        # Before #26275, bitcoind would crash when deriveaddresses was
+        # called with derivation index 2147483647, which is the maximum
+        # positive value of a signed int32, and - currently - the
+        # maximum value that the deriveaddresses bitcoin RPC call
+        # accepts as derivation index.
+        assert_equal(self.nodes[0].deriveaddresses(descsum_create("wpkh(tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/1/1/*)"), [2147483647, 2147483647]), ["bcrt1qtzs23vgzpreks5gtygwxf8tv5rldxvvsyfpdkg"])
+
         hardened_without_privkey_descriptor = descsum_create("wpkh(tpubD6NzVbkrYhZ4WaWSyoBvQwbpLkojyoTZPRsgXELWz3Popb3qkjcJyJUGLnL4qHHoQvao8ESaAstxYSnhyswJ76uZPStJRJCTKvosUCJZL5B/1'/1/0)")
         assert_raises_rpc_error(-5, "Cannot derive script without private keys", self.nodes[0].deriveaddresses, hardened_without_privkey_descriptor)