1 files changed, 1 insertions, 0 deletions
diff --git a/src/vis.c b/src/vis.c
index 6153a7f..f869ed8 100644
--- a/src/vis.c
+++ b/src/vis.c
@@ -32,6 +32,7 @@
 #include <limits.h>
 #include <ctype.h>
 #include <string.h>
+#include <stdio.h>
 #include <vis.h>
 
 #define	isoctal(c)	(((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')