diff --git a/src/corelib/io/qfsfileengine_win.cpp b/src/corelib/io/qfsfileengine_win.cpp
index 347ce8429e5..f6362b1e52d 100644
--- a/src/corelib/io/qfsfileengine_win.cpp
+++ b/src/corelib/io/qfsfileengine_win.cpp
@@ -66,6 +66,7 @@
 #include <accctrl.h>
 #include <ctype.h>
 #include <limits.h>
+#include <stdio.h>
 #define SECURITY_WIN32
 #include <security.h>