diff --git a/man7/system_data_types.7 b/man7/system_data_types.7
index 61c4a25b2..af0c55c65 100644
--- a/man7/system_data_types.7
+++ b/man7/system_data_types.7
@@ -197,6 +197,30 @@ Conforming to: C99 and later; POSIX.1-2001 and later.
 See also:
 .BR fenv (3)
 .RE
+.\"------------------------------------- FILE -------------------------/
+.TP
+.I FILE
+.RS
+.br
+Include:
+.IR <stdio.h> ;
+or
+.IR <wchar.h> .
+.PP
+An object type used for streams.
+.PP
+Conforming to: C99 and later; POSIX.1-2001 and later.
+.PP
+See also:
+.BR fclose (3),
+.BR flockfile (3),
+.BR fopen (3),
+.BR fprintf (3),
+.BR fread (3),
+.BR fscanf (3),
+.BR stdin (3),
+.BR stdio (3)
+.RE
 .\"------------------------------------- float_t ----------------------/
 .TP
 .I float_t