minor change.
diff --git a/tensorflow/core/kernels/mkl/mkl_matmul_ops_common.h b/tensorflow/core/kernels/mkl/mkl_matmul_ops_common.h
index a31f911..fe92799 100644
--- a/tensorflow/core/kernels/mkl/mkl_matmul_ops_common.h
+++ b/tensorflow/core/kernels/mkl/mkl_matmul_ops_common.h
@@ -42,7 +42,7 @@
// to determine if the matrix multiplication should be run on a single thread.
ptrdiff_t l2_size = cache_sizes.m_l2;
constexpr int kHeuristicMultiplier = 1;
- int mul_size = bytes * (m * n + k * (m + n));
+ const int mul_size = bytes * (m * n + k * (m + n));
const int l2_heur = l2_size * kHeuristicMultiplier;
return mul_size < l2_heur;
}