diff --git a/site_ansto/make_config.sh b/site_ansto/make_config.sh
index 710c5644..ee07e28d 100755
--- a/site_ansto/make_config.sh
+++ b/site_ansto/make_config.sh
@@ -3,12 +3,10 @@
 # Write a new made_config.h, but only if changed
 #
 rm -f made_config_new.h
-SICS_SITE=$(bash extract_version.sh SITE)
-SICS_VERSION=$(bash extract_version.sh VERSION)
-SICS_REVISION=$(bash extract_version.sh REVISION)
+source extract_version.sh
 echo "#define SICS_SITE \"$SICS_SITE\"" >> made_config_new.h
-echo "#define SICS_VERSION \"$SICS_VERSION\"" >> made_config_new.h
-echo "#define SICS_REVISION \"$SICS_REVISION\"" >> made_config_new.h
+echo "#define SICS_VERSION \"$SICS_VER\"" >> made_config_new.h
+echo "#define SICS_REVISION \"$SICS_REV\"" >> made_config_new.h
 if [[ -f /usr/include/valgrind/memcheck.h ]]
 then
   echo "#define SICS_VALGRIND" >> made_config_new.h