diff --git a/docs/libssh2_sftp_last_error.3 b/docs/libssh2_sftp_last_error.3
index 725262a..0789789 100644
--- a/docs/libssh2_sftp_last_error.3
+++ b/docs/libssh2_sftp_last_error.3
@@ -1,4 +1,4 @@
-.\" $Id: libssh2_sftp_last_error.3,v 1.1 2007/06/14 16:08:43 jehousley Exp $
+.\" $Id: libssh2_sftp_last_error.3,v 1.2 2008/12/15 18:48:09 bagder Exp $
 .\"
 .TH libssh2_sftp_last_error 3 "1 Jun 2007" "libssh2 0.15" "libssh2 manual"
 .SH NAME
@@ -14,7 +14,10 @@ libssh2_sftp_last_error(LIBSSH2_SFTP *sftp);
 \fIsftp\fP - SFTP instance as returned by 
 .BR libssh2_sftp_init(3)
 
-Determines the last error code produced by the SFTP layer.
+Returns the last error code produced by the SFTP layer. Note that this only
+returns a sensible error code if libssh2 returned LIBSSH2_ERROR_SFTP_PROTOCOL
+in a previous call. Using \fBlibssh2_sftp_last_error(3)\fP without a
+preceeding SFTP protocol error, it will return an unspecified value.
 
 .SH RETURN VALUE
 Current error code state of the SFTP instance.