diff --git a/app/src/apdu_handler.c b/app/src/apdu_handler.c
index e105c7c8..d8ea8b66 100644
--- a/app/src/apdu_handler.c
+++ b/app/src/apdu_handler.c
@@ -213,6 +213,11 @@ __Z_INLINE void handleSign(volatile uint32_t *flags, volatile uint32_t *tx, uint
         const int error_msg_length = strnlen(error_msg, sizeof(G_io_apdu_buffer));
         MEMCPY(G_io_apdu_buffer, error_msg, error_msg_length);
         *tx += (error_msg_length);
+
+#ifdef HAVE_SWAP
+        // Finalize the transaction with failure status
+        finalize_exchange_sign_transaction(false);
+#endif 
         THROW(APDU_CODE_DATA_INVALID);
     }