diff --git a/doc/rm_rfat.3.md b/doc/rm_rfat.3.md
index d42affb..68ae11c 100644
--- a/doc/rm_rfat.3.md
+++ b/doc/rm_rfat.3.md
@@ -9,6 +9,7 @@ rmstarat, rmstar\_tmpat, rmstar\_in\_tmpat - remove the full content of a direct
 
 # SYNOPSIS
 
+    #include <fcntl.h> /* AT_FDCWD */
     #include <limb/djbunix.h>
 
 ```pre hl
@@ -30,6 +31,8 @@ It is the equivalent to [rm_rf](3) function except when `name` specifies a
 relative path, the directory to be opened is then determined relative to the
 directory associated with the file descriptor `fd` instead of the current
 working directory.
+If passed the special value *AT_FDCWD* in the `fd` parameter, the current
+working directory is used.
 
 The `rm_rf_tmpat`() function is similar except that it will use the given
 stralloc `sa` as heap-allocated temporary space.
diff --git a/doc/salsat.3.md b/doc/salsat.3.md
index 709c966..a5aa1ca 100644
--- a/doc/salsat.3.md
+++ b/doc/salsat.3.md
@@ -7,6 +7,7 @@ salsat, salst, salstat - append directory listing into an stralloc
 
 # SYNOPSIS
 
+    #include <fcntl.h> /* AT_FDCWD */
     #include <limb/djbunix.h>
 
 ```pre hl
@@ -25,6 +26,8 @@ It is the equivalent to [sals](3) function except when `name` specifies a
 relative path, the directory to be opened is then determined relative to the
 directory associated with the file descriptor `fd` instead of the current
 working directory.
+If passed the special value *AT_FDCWD* in the `fd` parameter, the current
+working directory is used.
 
 If not NULL, `maxlen` will be set to the length of the longest file name added.
 (It will be 0 in case of empty directory.)
@@ -32,7 +35,7 @@ If not NULL, `maxlen` will be set to the length of the longest file name added.
 `salst`() is a macro to [sals](3) with a slightly different interface, namely
 the stralloc `sa` as first argument.
 
-Similarly, `salstat`() is a macro to [salsat](3) with a slightly different
+Similarly, `salstat`() is a macro to `salsat`() with a slightly different
 interface as well.
 
 # RETURN VALUE
diff --git a/doc/sareadlinkat.3.md b/doc/sareadlinkat.3.md
index 780b7de..4e665e3 100644
--- a/doc/sareadlinkat.3.md
+++ b/doc/sareadlinkat.3.md
@@ -7,6 +7,7 @@ sareadlinkat - read the content of a symbolic link
 
 # SYNOPSIS
 
+    #include <fcntl.h> /* AT_FDCWD */
     #include <limb/djbunix.h>
 
 ```pre hl
@@ -18,11 +19,13 @@ int sareadlinkat(stralloc *<em>sa</em>, int <em>fd</em>, const char * restrict <
 The `sareadlinkat`() function places the content of the symbolic link referred
 to by `file` in the stralloc `sa`.
 
-The symbolic link whose content is read is relative to the directory associated
-with the file descriptor `fd`. If passed the special value `AT_FDCWD` in the
-`fd` parameter, the current working directory is used.
+For more details, refer to [readlinkat](3).
 
-For more details, refer to [`readlinkat`](3).
+It is equivalent to [sareadlink](3) except when `file` specifies a relative
+path, the symbolic link whose content is read is then determined relative to
+the directory associated with the file descriptor `fd`.
+If passed the special value *AT_FDCWD* in the `fd` parameter, the current
+working directory is used.
 
 # RETURN VALUE