Index: source/lib/sysdep/os/win/wposix/wfilesystem.cpp
===================================================================
--- source/lib/sysdep/os/win/wposix/wfilesystem.cpp
+++ source/lib/sysdep/os/win/wposix/wfilesystem.cpp
@@ -285,7 +285,7 @@
 	ENSURE(hFile != INVALID_HANDLE_VALUE);
 	LARGE_INTEGER ofs; ofs.QuadPart = length;
 	WARN_IF_FALSE(SetFilePointerEx(hFile, ofs, 0, FILE_BEGIN));
-	WARN_IF_FALSE(SetEndOfFile(hFile));
+	WARN_IF_ERR(SetEndOfFile(hFile));
 	WARN_IF_FALSE(CloseHandle(hFile));
 	return 0;
 }