diff --git a/cpp/include/raft/linalg/normalize.cuh b/cpp/include/raft/linalg/normalize.cuh
index 1f60860c8c..de5f4e62ce 100644
--- a/cpp/include/raft/linalg/normalize.cuh
+++ b/cpp/include/raft/linalg/normalize.cuh
@@ -18,9 +18,11 @@
 
 #include "detail/normalize.cuh"
 
+#include <raft/core/device_mdspan.hpp>
 #include <raft/core/operators.hpp>
 #include <raft/core/resource/cuda_stream.hpp>
 #include <raft/linalg/norm_types.hpp>
+#include <raft/util/input_validation.hpp>
 
 namespace raft {
 namespace linalg {