1 files changed, 1 insertions, 0 deletions

diff --git a/src/who.c b/src/who.c
index 7fd98d0bf..7220ec7e8 100644
--- a/src/who.c
+++ b/src/who.c
@@ -26,6 +26,7 @@
 
 #include <config.h>
 #include <getopt.h>
+#include <stdio.h>
 
 #include "error.h"
 #include "readutmp.h"