diff --git a/aegisub/src/charset_detect.cpp b/aegisub/src/charset_detect.cpp
index 42bb4c7f7..5684e71c2 100644
--- a/aegisub/src/charset_detect.cpp
+++ b/aegisub/src/charset_detect.cpp
@@ -44,6 +44,7 @@
 #include <fstream>
 #include <list>
 
+#include <wx/arrstr.h>
 #include <wx/choicdlg.h>
 #include <wx/intl.h>
 #endif