diff --git a/jam/Jam.html b/jam/Jam.html
index c1cbc4f129..c174c46cfe 100644
--- a/jam/Jam.html
+++ b/jam/Jam.html
@@ -1134,6 +1134,7 @@ jam [ -a ] [ -g ] [ -n ] [ -q ] [ -v ]
 	<TABLE WIDTH=75% ALIGN=CENTER>
 
 	    <TR><TD>JAMDATE<TD>Time and date at <b>jam</b> start-up.
+	    <TR><TD>JAMJOBS<TD>Number of shell commands to run concurrently, as specified by jam -jx.
 	    <TR><TD>JAMUNAME<TD>Ouput of <b>uname</b>(1) command (Unix only)
 	    <TR><TD>JAMVERSION<TD><b>jam</b> version, as reported by jam -v.
 
diff --git a/jam/jam.c b/jam/jam.c
index 13fbb88504..2bbf1ae228 100644
--- a/jam/jam.c
+++ b/jam/jam.c
@@ -229,7 +229,10 @@ main( int argc, char **argv, char **arg_environ )
 	    anyhow++;
 
 	if( ( s = getoptval( optv, 'j', 0 ) ) )
+	{
 	    globs.jobs = atoi( s );
+	    var_set( "JAMJOBS", list_new( L0, s, 0 ), VAR_SET );
+	}
 
 	if( ( s = getoptval( optv, 'g', 0 ) ) )
 	    globs.newestfirst = 1;