diff --git a/elf/constload1.c b/elf/constload1.c
index e0ddae9acc..7381beea88 100644
--- a/elf/constload1.c
+++ b/elf/constload1.c
@@ -2,6 +2,7 @@
 #include <errno.h>
 #include <error.h>
 #include <mcheck.h>
+#include <stdio.h>
 #include <stdlib.h>
 
 int