diff --git a/core/Cargo.toml b/core/Cargo.toml
index 6d801c0..41f1e9a 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -30,6 +30,7 @@ unimplemented = "deny"
 manual_string_new = "deny"
 uninlined_format_args = "deny"
 cloned_instead_of_copied = "deny"
+redundant_clone = "deny"
 match_same_arms = "deny"
 semicolon_if_nothing_returned = "deny"
 if_not_else = "deny"