diff --git a/CHANGES b/CHANGES
index 388d914..fb001b1 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3,6 +3,7 @@
   add stralloc_chop and stralloc_chomp
   add buffer_putsa, buffer_get_token_sa and buffer_getline_sa
   extended uudecode test.  See comment at top for details.
+  fix #include in ndelay*.3 (Hynek Schlawack)
 
 0.14:
   avoid bus errors in byte_copy
diff --git a/unix/ndelay_off.3 b/unix/ndelay_off.3
index d5fc695..86514f2 100644
--- a/unix/ndelay_off.3
+++ b/unix/ndelay_off.3
@@ -2,7 +2,7 @@
 .SH NAME
 ndelay_off \- put file descriptor in non-blocking mode
 .SH SYNTAX
-.B #include <unix.h>
+.B #include <ndelay.h>
 
 extern int \fBndelay_off\fP(int \fIfd\fR);
 .SH DESCRIPTION
diff --git a/unix/ndelay_on.3 b/unix/ndelay_on.3
index 21f84bb..a5fda4b 100644
--- a/unix/ndelay_on.3
+++ b/unix/ndelay_on.3
@@ -2,7 +2,7 @@
 .SH NAME
 ndelay_on \- put file descriptor in non-blocking mode
 .SH SYNTAX
-.B #include <unix.h>
+.B #include <ndelay.h>
 
 extern int \fBndelay_on\fP(int \fIfd\fR);
 .SH DESCRIPTION