diff --git a/lib/libc/stdio/stdio.3 b/lib/libc/stdio/stdio.3
--- a/lib/libc/stdio/stdio.3
+++ b/lib/libc/stdio/stdio.3
@@ -252,7 +252,7 @@
 .It "fgets	get a line from a stream"
 .It "fgetwc	get next wide character from input stream"
 .It "fgetws	get a line of wide characters from a stream"
-.It "fileno	check and reset stream status"
+.It "fileno	map a stream pointer to a file descriptor"
 .It "fopen	stream open functions"
 .It "fprintf	formatted output conversion"
 .It "fpurge	flush a stream"