From 9d4559a47af4b512a812adca6d1b56d00c66d657 Mon Sep 17 00:00:00 2001
From: gudnuf <108303703+gudnuf@users.noreply.github.com>
Date: Thu, 25 Sep 2025 00:57:41 -0700
Subject: [PATCH] fix: only settle same unit quote internally (#1115)

---
 crates/cdk/src/mint/mod.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/crates/cdk/src/mint/mod.rs b/crates/cdk/src/mint/mod.rs
index 45c11c39..3f99691c 100644
--- a/crates/cdk/src/mint/mod.rs
+++ b/crates/cdk/src/mint/mod.rs
@@ -887,9 +887,9 @@ impl Mint {
             .get_mint_quote_by_request(&melt_quote.request.to_string())
             .await
         {
-            Ok(Some(mint_quote)) => mint_quote,
-            // Not an internal melt -> mint
-            Ok(None) => return Ok(None),
+            Ok(Some(mint_quote)) if mint_quote.unit == melt_quote.unit => mint_quote,
+            // Not an internal melt -> mint or unit mismatch
+            Ok(_) => return Ok(None),
             Err(err) => {
                 tracing::debug!("Error attempting to get mint quote: {}", err);
                 return Err(Error::Internal);