diff --git a/src/lib/direct.c b/src/lib/direct.c
index b2e05428f..2217815c7 100644
--- a/src/lib/direct.c
+++ b/src/lib/direct.c
@@ -1,5 +1,6 @@
 #include "version.h"
 #include "builddef.h"
+#include <stdio.h>
 #include <fcntl.h>
 #include <errno.h>
 #include <string.h>