diff --git a/CHANGELOG.md b/CHANGELOG.md
index 112423ad..068a83de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ Rhai Release Notes
 Version 1.5.0
 =============
 
+Bug fixes
+---------
+
+* In `Scope::clone_visible`, constants are now properly cloned as constants.
+
 New features
 ------------
 
diff --git a/src/types/scope.rs b/src/types/scope.rs
index 56f21748..e6b0de89 100644
--- a/src/types/scope.rs
+++ b/src/types/scope.rs
@@ -534,8 +534,12 @@ impl Scope<'_> {
             Self::new(),
             |mut entries, (index, (name, alias))| {
                 if !entries.names.iter().any(|(key, _)| key == name) {
+                    let orig_value = &self.values[len - 1 - index];
+                    let mut value = orig_value.clone();
+                    value.set_access_mode(orig_value.access_mode());
+
                     entries.names.push((name.clone(), alias.clone()));
-                    entries.values.push(self.values[len - 1 - index].clone());
+                    entries.values.push(value);
                 }
                 entries
             },