diff --git a/Modules/_io/_iomodule.c b/Modules/_io/_iomodule.c
index f4d3cbd49f8bd7..706dd55aca391d 100644
--- a/Modules/_io/_iomodule.c
+++ b/Modules/_io/_iomodule.c
@@ -21,6 +21,7 @@
 #endif /* HAVE_SYS_STAT_H */
 
 #ifdef MS_WINDOWS
+#include <windows.h>
 #include <consoleapi.h>
 #endif