diff --git a/libntfs/bitmap.c b/libntfs/bitmap.c
index fec478c4..42209e49 100644
--- a/libntfs/bitmap.c
+++ b/libntfs/bitmap.c
@@ -20,6 +20,7 @@
  */
 
 #include <stdlib.h>
+#include <stdio.h>
 #include <errno.h>
 
 #include "types.h"