diff --git a/examples/user.cpp b/examples/user.cpp
index a026b48..9deb320 100644
--- a/examples/user.cpp
+++ b/examples/user.cpp
@@ -4,6 +4,7 @@
 #include "Kokkos_Core.hpp"
 
 #include <cstdint>
+#include <iostream>
 
 struct InitView {
   explicit InitView(view_type _v) : m_view(_v) {}