diff --git a/clippy_utils/src/sugg.rs b/clippy_utils/src/sugg.rs
index 5d7e1494fcfde..a43a81bc63a13 100644
--- a/clippy_utils/src/sugg.rs
+++ b/clippy_utils/src/sugg.rs
@@ -1011,6 +1011,8 @@ impl<'tcx> Delegate<'tcx> for DerefDelegate<'_, 'tcx> {
                         },
                         // note: unable to trigger `Subslice` kind in tests
                         ProjectionKind::Subslice => (),
+                        // Doesn't have surface syntax. Only occurs in patterns.
+                        ProjectionKind::OpaqueCast => (),
                         ProjectionKind::Deref => {
                             // Explicit derefs are typically handled later on, but
                             // some items do not need explicit deref, such as array accesses,