diff --git a/doc/manuals/Makefile b/doc/manuals/Makefile
index bae43442..8814598f 100644
--- a/doc/manuals/Makefile
+++ b/doc/manuals/Makefile
@@ -22,7 +22,7 @@ CONFIG = rads_config.tex rads4_sats.tex
 MAN = rads4_data_manual.pdf rads4_user_manual.pdf
 SUBS = rads rads_geo rads_grid rads_math rads_misc rads_netcdf rads_time
 SUBS_TEX = $(foreach sub,$(SUBS),sub/$(sub).tex)
-PROGS = rads2asc4 rads2nc rads2grd4 radscolin4
+PROGS = rads2asc4 rads2nc rads2grd4 radscolin4 radspassesindex4
 PROGS_EXTRA = rads2grd4-o radscolin4-r radsstat4-h
 PROGS_HLP = $(foreach prog,$(PROGS),sub/$(prog).hlp)
 PROGS_OUT = $(foreach prog,$(PROGS) $(PROGS_EXTRA),sub/$(prog).out)
@@ -116,6 +116,9 @@ sub/radscolin4-r.out:	Makefile ../../src/radscolin4
 	(head -n 18 $(@F); $(SEPARATOR); tail -n 4 $(@F)) > $@
 	rm -f $(@F)
 
+sub/radspassesindex4.out:	Makefile ../../src/radspassesindex4
+	PATH=../../src radspassesindex4 -S e2 -C 0 -P 901,910 -h -y -p > $@ 0>&2
+
 inc/max.out:		getraw.nml max.nml $(RADSROOT)/bin/max2
 	rm -f xovers.rxf
 	max2 sat=e2 cycle=0,1 sel=0,1,17 xovers > inc/max_v.out