diff --git a/lib/subghz/protocols/alutech_at_4n.c b/lib/subghz/protocols/alutech_at_4n.c
index 6733613c4..83d98b7aa 100644
--- a/lib/subghz/protocols/alutech_at_4n.c
+++ b/lib/subghz/protocols/alutech_at_4n.c
@@ -308,8 +308,8 @@ bool subghz_protocol_alutech_at_4n_create_data(
     instance->generic.data_count_bit = 72;
     bool res = subghz_protocol_alutech_at_4n_gen_data(instance, btn);
     if(res) {
-        res = subghz_block_generic_serialize(&instance->generic, flipper_format, preset);
-        if((res == SubGhzProtocolStatusOk) &&
+        if((subghz_block_generic_serialize(&instance->generic, flipper_format, preset) !=
+            SubGhzProtocolStatusOk) ||
            !flipper_format_write_uint32(flipper_format, "CRC", &instance->crc, 1)) {
             FURI_LOG_E(TAG, "Unable to add CRC");
             res = false;