diff --git a/src/pyflakes/mod.rs b/src/pyflakes/mod.rs
index e3e3aae0fe..5a2cd2ed65 100644
--- a/src/pyflakes/mod.rs
+++ b/src/pyflakes/mod.rs
@@ -1345,6 +1345,7 @@ mod tests {
 
     #[test]
     fn redefined_by_function() -> Result<()> {
+        // TODO(charlie): Why does this differ from the next test assertion?
         flakes(
             r#"
         import fu