diff --git a/src/table.rs b/src/table.rs
index 2e0d999..86a14c9 100644
--- a/src/table.rs
+++ b/src/table.rs
@@ -941,7 +941,7 @@ impl ObjectLike for Table {
 
     #[inline]
     fn to_string(&self) -> Result<StdString> {
-        Value::Table(self.clone()).to_string()
+        Value::Table(Table(self.0.copy())).to_string()
     }
 }
 
diff --git a/src/userdata/object.rs b/src/userdata/object.rs
index e9582e5..faa68f7 100644
--- a/src/userdata/object.rs
+++ b/src/userdata/object.rs
@@ -88,6 +88,6 @@ impl ObjectLike for AnyUserData {
 
     #[inline]
     fn to_string(&self) -> Result<StdString> {
-        Value::UserData(self.clone()).to_string()
+        Value::UserData(AnyUserData(self.0.copy(), self.1)).to_string()
     }
 }