diff --git a/libtar/block.c b/libtar/block.c
index 1cfc0e4..6ed9e60 100644
--- a/libtar/block.c
+++ b/libtar/block.c
@@ -11,7 +11,7 @@
 */
 
 #include <internal.h>
-
+#include <stdio.h>
 #include <errno.h>
 
 #ifdef STDC_HEADERS