diff --git a/src/xspice/icm/Makefile.am b/src/xspice/icm/Makefile.am
index 120528608..fbdd5a786 100755
--- a/src/xspice/icm/Makefile.am
+++ b/src/xspice/icm/Makefile.am
@@ -13,8 +13,8 @@ EXTRA_DIST = README modpath.lst udnpath.lst spice2poly.cm dlmain.c
 
 
 # Edit these to point to your Opus installation
-CMPPDIR = /usr/local/opus/bin
-OPUS_INCLUDE_DIR = /usr/local/opus/lib/spice/include
+CMPPDIR = $(top_srcdir)/src/xspice/cmpp
+OPUS_INCLUDE_DIR = $(top_srcdir)/src/include
 
 
 ##------ automake definitions below. ------
diff --git a/src/xspice/icm/icm_spice2poly/Makefile.am b/src/xspice/icm/icm_spice2poly/Makefile.am
index 853011741..8c7ad1e4c 100644
--- a/src/xspice/icm/icm_spice2poly/Makefile.am
+++ b/src/xspice/icm/icm_spice2poly/Makefile.am
@@ -6,7 +6,7 @@
 #
 
 # Edit this to point to cmpp in your installation.
-CMPPDIR = /usr/local/opus/bin
+CMPPDIR = $(top_srcdir)/src/xspice/cmpp
 
 ##------ automake definitions below. ------
 ##