diff --git a/crates/cdk-sqlite/src/mint/mod.rs b/crates/cdk-sqlite/src/mint/mod.rs
index c124ab907..b4adacca4 100644
--- a/crates/cdk-sqlite/src/mint/mod.rs
+++ b/crates/cdk-sqlite/src/mint/mod.rs
@@ -42,6 +42,10 @@ impl MintSqliteDatabase {
         transaction: &mut sqlx::Transaction<'_, sqlx::Sqlite>,
         ys: &[PublicKey],
     ) -> Result<bool, database::Error> {
+    if ys.is_empty() {
+        return Ok(false);
+    }
+    
         let check_sql = format!(
             "SELECT state FROM proof WHERE y IN ({}) AND state = 'SPENT'",
             std::iter::repeat("?")