diff --git a/xla/hlo/experimental/auto_sharding/iopddl.cc b/xla/hlo/experimental/auto_sharding/iopddl.cc
index f8519a47bf2be..b2cb06d55cdec 100644
--- a/xla/hlo/experimental/auto_sharding/iopddl.cc
+++ b/xla/hlo/experimental/auto_sharding/iopddl.cc
@@ -18,7 +18,6 @@ limitations under the License.
 
 #include <algorithm>
 #include <cstdint>
-#include <optional>
 #include <vector>
 
 #include "absl/status/status.h"