diff --git a/tests/experimental/Makefile b/tests/experimental/Makefile
index ceb98106..d222a640 100644
--- a/tests/experimental/Makefile
+++ b/tests/experimental/Makefile
@@ -1,3 +1,10 @@
+OPT=-g
+#OPT=-O2
+
 fac-test: fac-test.c
-	cc fac-test.c  -O2 -fPIC -Wall -I/usr/local/include -L/usr/local/lib -Wl,--export-dynamic -c -o fac-test.o
-	cc fac-test.o  /usr/local/share/cyclone/scheme/cyclone/common.o  /usr/local/share/cyclone/scheme/base.o  /usr/local/share/cyclone/scheme/write.o  -pthread -lcyclone -lck -lm -ltommath -ldl  -O2 -fPIC -Wall -I/usr/local/include -L/usr/local/lib -Wl,--export-dynamic -o fac-test
+	cc fac-test.c  $(OPT) -fPIC -Wall -I/usr/local/include -L/usr/local/lib -Wl,--export-dynamic -c -o fac-test.o
+	cc fac-test.o  /usr/local/share/cyclone/scheme/cyclone/common.o  /usr/local/share/cyclone/scheme/base.o  /usr/local/share/cyclone/scheme/write.o  -pthread -lcyclone -lck -lm -ltommath -ldl  $(OPT) -fPIC -Wall -I/usr/local/include -L/usr/local/lib -Wl,--export-dynamic -o fac-test
+ 
+.PHONY: clean
+clean:
+	rm -f *.o fac-test