diff --git a/library/std/src/sys/sgx/abi/tls/mod.rs b/library/std/src/sys/sgx/abi/tls/mod.rs
index 13d96e9a633d3..09c4ab3d3e901 100644
--- a/library/std/src/sys/sgx/abi/tls/mod.rs
+++ b/library/std/src/sys/sgx/abi/tls/mod.rs
@@ -111,6 +111,7 @@ impl Tls {
             rtabort!("TLS limit exceeded")
         };
         TLS_DESTRUCTOR[index].store(dtor.map_or(0, |f| f as usize), Ordering::Relaxed);
+        unsafe { Self::current() }.data[index].set(ptr::null_mut());
         Key::from_index(index)
     }