diff --git a/library/core/src/alloc/layout.rs b/library/core/src/alloc/layout.rs
index cf864039a23bad947491e70efc956af49c63807e..2f378836cbbb37619ac0a6f020c8ea356931e8e1 100644
--- a/library/core/src/alloc/layout.rs
+++ b/library/core/src/alloc/layout.rs
@@ -26,7 +26,7 @@ const fn size_align<T>() -> (usize, usize) {
 /// like this are met, use specific allocators with looser
 /// requirements, or use the more lenient `Allocator` interface.)
 #[stable(feature = "alloc_layout", since = "1.28.0")]
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 #[lang = "alloc_layout"]
 pub struct Layout {
     // size of the requested block of memory, measured in bytes.
diff --git a/library/core/src/mem/valid_align.rs b/library/core/src/mem/valid_align.rs
index 596a67f255a1bbcf3cbe003cbc8daab3903f57cf..fcfa95120df21e94d9c6f8c0b3f4c76026a0aa5b 100644
--- a/library/core/src/mem/valid_align.rs
+++ b/library/core/src/mem/valid_align.rs
@@ -1,6 +1,6 @@
 use crate::convert::TryFrom;
 use crate::num::NonZeroUsize;
-use crate::{cmp, fmt, mem, num};
+use crate::{cmp, fmt, hash, mem, num};
 
 /// A type storing a `usize` which is a power of two, and thus
 /// represents a possible alignment in the rust abstract machine.
@@ -105,6 +105,13 @@ fn partial_cmp(&self, other: &Self) -> Option<cmp::Ordering> {
     }
 }
 
+impl hash::Hash for ValidAlign {
+    #[inline]
+    fn hash<H: hash::Hasher>(&self, state: &mut H) {
+        self.as_nonzero().hash(state)
+    }
+}
+
 #[cfg(target_pointer_width = "16")]
 type ValidAlignEnum = ValidAlignEnum16;
 #[cfg(target_pointer_width = "32")]