diff --git a/compat/vis/vis.h b/compat/vis/vis.h
index cb1b9bd..9f12d23 100644
--- a/compat/vis/vis.h
+++ b/compat/vis/vis.h
@@ -76,13 +76,10 @@
 char	*vis(char *, int, int, int);
 int	strvis(char *, const char *, int);
 int	stravis(char **, const char *, int);
-int	strnvis(char *, const char *, size_t, int)
-		__attribute__ ((__bounded__(__string__,1,3)));
-int	strvisx(char *, const char *, size_t, int)
-		__attribute__ ((__bounded__(__string__,1,3)));
+int	strnvis(char *, const char *, size_t, int);
+int	strvisx(char *, const char *, size_t, int);
 int	strunvis(char *, const char *);
 int	unvis(char *, char, int *, int);
-ssize_t strnunvis(char *, const char *, size_t)
-		__attribute__ ((__bounded__(__string__,1,3)));
+ssize_t strnunvis(char *, const char *, size_t);
 
 #endif /* !_VIS_H_ */