diff --git a/util/ego/il/il3_change.c b/util/ego/il/il3_change.c
index f9850035e..147ce7959 100644
--- a/util/ego/il/il3_change.c
+++ b/util/ego/il/il3_change.c
@@ -4,6 +4,7 @@
  */
 
 
+#include <stdio.h>
 #include "../share/types.h"
 #include "il.h"
 #include "../share/debug.h"