diff --git a/src/V3Error.h b/src/V3Error.h
index dc74e55ad..a895a9cdb 100644
--- a/src/V3Error.h
+++ b/src/V3Error.h
@@ -23,6 +23,7 @@
 // Limited V3 headers here - this is a base class for Vlc etc
 #include "V3String.h"
 
+#include <array>
 #include <bitset>
 #include <cassert>
 #include <deque>
diff --git a/src/V3Os.h b/src/V3Os.h
index 8c328c89b..21fa583b9 100644
--- a/src/V3Os.h
+++ b/src/V3Os.h
@@ -20,6 +20,8 @@
 #include "config_build.h"
 #include "verilatedos.h"
 
+#include <array>
+
 // Limited V3 headers here - this is a base class for Vlc etc
 #include "V3Error.h"