diff --git a/Cargo.toml b/Cargo.toml
index 3a225798..8e91e82c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -978,7 +978,7 @@ semicolon_outside_block = "warn"
 str_to_string = "warn"
 string_lit_chars_any = "warn"
 string_slice = "warn"
-string_to_string = "warn"
+implicit_clone = "warn"
 suspicious_xor_used_as_pow = "warn"
 tests_outside_test_module = "warn"
 try_err = "warn"