diff --git a/stepmania/src/archutils/Win32/CrashHandlerChild.cpp b/stepmania/src/archutils/Win32/CrashHandlerChild.cpp
index 8823468c9d..59d579e0d2 100644
--- a/stepmania/src/archutils/Win32/CrashHandlerChild.cpp
+++ b/stepmania/src/archutils/Win32/CrashHandlerChild.cpp
@@ -1,6 +1,7 @@
 #include "global.h"
 #include "CrashHandlerInternal.h"
 #include "Crash.h"
+#include <errno.h>
 
 #include <windows.h>
 #include <commctrl.h>