diff --git a/.cargo/mutants.toml b/.cargo/mutants.toml
index d75fc5808..997adc36d 100644
--- a/.cargo/mutants.toml
+++ b/.cargo/mutants.toml
@@ -8,4 +8,5 @@ exclude_re = [
     "::fmt ->", # easy to break, hard to test completely
     "<impl Error for ", # easy to break, hard to test completely
     "<impl Arbitrary for ", # near-impossible to test
+    "<impl Listener for .*>::alive", # mutating this to true can only cause leaks
 ]
\ No newline at end of file