diff --git a/src/lib.rs b/src/lib.rs
index 9a283b0..2e1e1ae 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -58,7 +58,7 @@ impl fmt::Debug for TypeErasedVec {
             .field("layout", &self.layout)
             .field("length", &self.parts.len)
             .field("capacity", &self.parts.cap)
-            .finish()
+            .finish_non_exhaustive()
     }
 }