diff --git a/src/protocol/eval/store.rs b/src/protocol/eval/store.rs
index 4b598afe4fe7b31f566f3e3df2ff7ac336064666..7b1ce034f8d1b31e2da8a8c09b90c0f10ff09bab 100644
--- a/src/protocol/eval/store.rs
+++ b/src/protocol/eval/store.rs
@@ -189,6 +189,7 @@ impl Store {
             Value::Array(_) => Value::Array(target_heap_pos),
             Value::Union(tag, _) => Value::Union(tag, target_heap_pos),
             Value::Struct(_) => Value::Struct(target_heap_pos),
+            Value::Tuple(_) => Value::Tuple(target_heap_pos),
             _ => unreachable!("performed clone_value on heap, but {:?} is not a heap value", value),
         }
     }