diff --git a/src/Map.hh b/src/Map.hh
index 0a0d95f9..e91b1f73 100644
--- a/src/Map.hh
+++ b/src/Map.hh
@@ -2,6 +2,7 @@
 
 #include <inttypes.h>
 
+#include <array>
 #include <memory>
 #include <phosg/Encoding.hh>
 #include <phosg/JSON.hh>
diff --git a/src/Version.hh b/src/Version.hh
index 3a3abd80..577c8aed 100644
--- a/src/Version.hh
+++ b/src/Version.hh
@@ -2,6 +2,7 @@
 
 #include <inttypes.h>
 
+#include <array>
 #include <phosg/Types.hh>
 #include <string>
 #include <vector>