diff --git a/src/common/ityp_array.h b/src/common/ityp_array.h
index 48e080fa5c..0544de97d6 100644
--- a/src/common/ityp_array.h
+++ b/src/common/ityp_array.h
@@ -19,6 +19,7 @@
 #include "common/UnderlyingType.h"
 
 #include <array>
+#include <cstddef>
 #include <type_traits>
 
 namespace ityp {