diff --git a/library/core/src/cell.rs b/library/core/src/cell.rs
index 7bf32cb0d98f2..e31de08f7622b 100644
--- a/library/core/src/cell.rs
+++ b/library/core/src/cell.rs
@@ -381,9 +381,6 @@ impl<T> Cell<T> {
     #[inline]
     #[stable(feature = "move_cell", since = "1.17.0")]
     pub fn swap(&self, other: &Self) {
-        if ptr::eq(self, other) {
-            return;
-        }
         // SAFETY: This can be risky if called from separate threads, but `Cell`
         // is `!Sync` so this won't happen. This also won't invalidate any
         // pointers since `Cell` makes sure nothing else will be pointing into