diff --git a/examples/code128.c b/examples/code128.c
index f31402d..5ced62a 100644
--- a/examples/code128.c
+++ b/examples/code128.c
@@ -14,9 +14,9 @@
 #include <pdfio.h>
 #include <pdfio-content.h>
 #ifdef _WIN32
-#include <io.h>
-#include <fcntl.h>
-#endif
+#  include <io.h>
+#  include <fcntl.h>
+#endif // _WIN32
 
 
 //