diff --git a/cpp/include/raft/distance/detail/distance_ops/l1.cuh b/cpp/include/raft/distance/detail/distance_ops/l1.cuh
index 7c01046e2c..d1948468b8 100644
--- a/cpp/include/raft/distance/detail/distance_ops/l1.cuh
+++ b/cpp/include/raft/distance/detail/distance_ops/l1.cuh
@@ -15,6 +15,7 @@
  */
 
 #pragma once
+#include <raft/util/cuda_utils.cuh>
 
 namespace raft::distance::detail::ops {