diff --git a/Makefile b/Makefile
index 8bb38f0..48f7f43 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,8 @@
+OUT=libscomp.a
 TESTS=test/input test/exec
 
+$(OUT): input.o exec.o
+	$(AR) rcs $(OUT) input.o exec.o
 tests: $(TESTS)
 	for i in $(TESTS); do ./$$i -v; done