diff --git a/Makefile b/Makefile
index 86e1462..a26ce6a 100644
--- a/Makefile
+++ b/Makefile
@@ -69,5 +69,5 @@ unoptar: unoptar.o common.o golay_codes.o parity.o
 
 archive: $(ARCHIVE_PATH)
 
-$(ARCHIVE_PATH): $(EXECUTABLES)
+$(ARCHIVE_PATH): $(EXECUTABLES) COPYING
 	tar czvf $@ $^