diff --git a/test/run-tests.sh b/test/run-tests.sh
index c66abe22cdde65f7ea2a38267cf98f7ae0b3c192..a99ba53627f84187b1370f37253cfa0ac208215e 100644
--- a/test/run-tests.sh
+++ b/test/run-tests.sh
@@ -4,10 +4,12 @@
 # - read lisp forms one at a time from standard input
 # - quit with exit status 0 on getting eof
 # - quit with exit status >0 if an unhandled error occurs
+#LISP="/usr/local/bin/lisp -batch "
 LISP="sbcl --noprogrammer"
 
 # file extension that $LISP uses for compiled files
 FASL=fasl
+#FASL=axpf
 
 rm *.$FASL || true
 for i in *.script;