diff --git a/clippy_lints/src/if_let_mutex.rs b/clippy_lints/src/if_let_mutex.rs
index 21749f8ad09..95b9c2823fe 100644
--- a/clippy_lints/src/if_let_mutex.rs
+++ b/clippy_lints/src/if_let_mutex.rs
@@ -72,6 +72,7 @@ impl LateLintPass<'_, '_> for IfLetMutex {
                         IF_LET_MUTEX,
                         ex.span,
                         "calling `Mutex::lock` inside the scope of another `Mutex::lock` causes a deadlock",
+                        None,
                         "move the lock call outside of the `if let ...` expression",
                     );
                 }