diff --git a/lib/libc/locale/digittoint.3 b/lib/libc/locale/digittoint.3
index ed724824de6..672e2460ab4 100644
--- a/lib/libc/locale/digittoint.3
+++ b/lib/libc/locale/digittoint.3
@@ -58,19 +58,6 @@ If the given character was not a digit as defined by
 .Xr isxdigit 3 ,
 the function will return 0.
 .Sh SEE ALSO
-.Xr isalnum 3 ,
-.Xr isalpha 3 ,
-.Xr isascii 3 ,
-.Xr iscntrl 3 ,
+.Xr ctype 3 ,
 .Xr isdigit 3 ,
-.Xr isgraph 3 ,
-.Xr islower 3 ,
-.Xr isprint 3 ,
-.Xr ispunct 3 ,
-.Xr isspace 3 ,
-.Xr isupper 3 ,
-.Xr isxdigit 3 ,
-.Xr stdio 3 ,
-.Xr tolower 3 ,
-.Xr toupper 3 ,
-.Xr ascii 7
+.Xr isxdigit 3