diff --git a/src/libstd/collections/hash/raw/mod.rs b/src/libstd/collections/hash/raw/mod.rs
index d6b614c8cbbcc..8fd1645d0a735 100644
--- a/src/libstd/collections/hash/raw/mod.rs
+++ b/src/libstd/collections/hash/raw/mod.rs
@@ -800,7 +800,7 @@ impl<T: Clone> Clone for RawTable<T> {
     }
 }
 
-impl<T> Drop for RawTable<T> {
+unsafe impl<#[may_dangle] T> Drop for RawTable<T> {
     #[inline]
     fn drop(&mut self) {
         if self.bucket_mask != 0 {