err = UCI_ERR_UNKNOWN;
if (ctx && ctx->pctx && (err == UCI_ERR_PARSE)) {
- snprintf(error_info, sizeof(error_info) - 1, " (%s) at line %d, byte %d",
+ snprintf(error_info, sizeof(error_info) - 1, " (%s) at line %d, byte %zu",
(ctx->pctx->reason ? ctx->pctx->reason : "unknown"),
ctx->pctx->line, ctx->pctx->byte);
}