diff --git a/src/librustc_middle/mir/cache.rs b/src/librustc_middle/mir/cache.rs
index af0f7efc3e35..12822cea418d 100644
--- a/src/librustc_middle/mir/cache.rs
+++ b/src/librustc_middle/mir/cache.rs
@@ -60,7 +60,6 @@ impl Cache {
     }
 
     /// This will recompute the predecessors cache if it is not available
-    // njn: typedef?
     fn predecessors(
         &mut self,
         body: &Body<'_>,