diff --git a/plate-tool-lib/src/plate.rs b/plate-tool-lib/src/plate.rs
index 2a5158c..ed8e3a1 100644
--- a/plate-tool-lib/src/plate.rs
+++ b/plate-tool-lib/src/plate.rs
@@ -1,6 +1,6 @@
 use serde::{Deserialize, Serialize};
 
-#[derive(PartialEq, Eq, Default, Clone, Copy, Serialize, Deserialize, Debug)]
+#[derive(PartialEq, Eq, Default, Clone, Copy, Serialize, Deserialize, Debug, Hash)]
 pub struct Plate {
     pub plate_type: PlateType,
     pub plate_format: PlateFormat,
@@ -19,7 +19,7 @@ impl Plate {
     }
 }
 
-#[derive(PartialEq, Eq, Clone, Copy, Serialize, Deserialize, Debug)]
+#[derive(PartialEq, Eq, Clone, Copy, Serialize, Deserialize, Debug, Hash)]
 pub enum PlateType {
     Source,
     Destination,
@@ -30,7 +30,7 @@ impl Default for PlateType {
     }
 }
 
-#[derive(PartialEq, Eq, Clone, Copy, Serialize, Deserialize, Debug)]
+#[derive(PartialEq, Eq, Clone, Copy, Serialize, Deserialize, Debug, Hash)]
 pub enum PlateFormat {
     W6,
     W12,