diff --git a/src/world.rs b/src/world.rs
index e7a3ef2..82c53a4 100644
--- a/src/world.rs
+++ b/src/world.rs
@@ -14,14 +14,14 @@ pub fn get_world_location() -> Result<PathBuf> {
     }
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct Packages {
     pub official: Vec<String>,
     pub foreign: Vec<String>,
     pub ignore: Vec<String>,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct World {
     packages: Packages,
 }