diff --git a/src/ItemData.cc b/src/ItemData.cc
index c11ef5ed..c28c2308 100644
--- a/src/ItemData.cc
+++ b/src/ItemData.cc
@@ -1,5 +1,6 @@
 #include "ItemData.hh"
 
+#include <array>
 #include <map>
 
 #include "ItemParameterTable.hh"