diff --git a/tensorflow/core/kernels/sparse_tensor_dense_matmul_op.h b/tensorflow/core/kernels/sparse_tensor_dense_matmul_op.h
index 52120d6c772d323913ec37d856520fc815b4fcf5..ac6c0339da554857c8cfbd7aaa5900b72e811760 100644
--- a/tensorflow/core/kernels/sparse_tensor_dense_matmul_op.h
+++ b/tensorflow/core/kernels/sparse_tensor_dense_matmul_op.h
@@ -66,7 +66,7 @@ EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE T MaybeConj(T v) {
 #define MAYBE_CONJ(T)                                         \
   template <>                                                 \
   EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE T MaybeConj<T>(T v) { \
-    return std::conj(v);                                      \
+    return Eigen::numext::conj(v);                            \
   }
 #endif