diff --git a/src/libs.rs b/src/libs.rs
index b23f646..2dc7c83 100644
--- a/src/libs.rs
+++ b/src/libs.rs
@@ -1,14 +1,13 @@
+use super::parm_tables::Parm;
 use crate::parm_tables;
 use chrono::prelude::*;
 use nom::bytes::complete::{tag, take};
 use nom::multi::count;
 use nom::number::complete::{i16, u16, u24, u8};
 use nom::number::Endianness::Little;
-use nom::sequence::{preceded, tuple, Tuple};
+use nom::sequence::{preceded, tuple};
 use nom::IResult;
 
-use super::parm_tables::Parm;
-
 struct IS {
     total_length: usize,
     version_number: u8,
diff --git a/src/main.rs b/src/main.rs
index e4209df..f58c5ee 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,7 @@
+pub mod gds;
 pub mod libs;
 pub mod parm_tables;
+pub mod pds;
 
 fn main() {
     println!("Hello, world!");