diff --git a/Makefile b/Makefile
index 9f06d43..0ac81a2 100644
--- a/Makefile
+++ b/Makefile
@@ -10,8 +10,10 @@ all: $(EXEC).8xp
 
 release: $(EXEC).zip
 
-$(EXEC).zip: $(EXEC).8xp $(EXEC).c $(LDIR)/c_ti83p.h lib README.md
-	zip $(EXEC).zip $(EXEC).8xp $(EXEC).c $(LDIR)/c_ti83p.h $(LDIR)/c_ti83p.lib release_Makefile
+$(EXEC).zip: $(EXEC).8xp $(EXEC).c $(LDIR)/c_ti83p.h lib README.md LICENSE.txt
+	zip $(EXEC).zip $(EXEC).8xp $(EXEC).c $(LDIR)/c_ti83p.h $(LDIR)/c_ti83p.lib \
+		release_Makefile README.md LICENSE.txt
+	# rename release_Makefile to Makefile in the zip archive
 	printf "@ release_Makefile\n@=Makefile" | zipnote -w $(EXEC).zip
 
 $(EXEC).8xp: $(EXEC).bin
diff --git a/release_Makefile b/release_Makefile
index c23e6bf..15a101b 100644
--- a/release_Makefile
+++ b/release_Makefile
@@ -12,8 +12,9 @@ all: $(EXEC).8xp
 
 release: $(EXEC).zip
 
-$(EXEC).zip: $(EXEC).8xp $(EXEC).c $(LDIR)/c_ti83p.h $(LDIR)/c_ti83p.lib README.md
-	zip $(EXEC).zip $(EXEC).8xp $(EXEC).c $(LDIR)/c_ti83p.h $(LDIR)/c_ti83p.lib Makefile
+$(EXEC).zip: $(EXEC).8xp $(EXEC).c $(LDIR)/c_ti83p.h $(LDIR)/c_ti83p.lib README.md LICENSE.txt
+	zip $(EXEC).zip $(EXEC).8xp $(EXEC).c $(LDIR)/c_ti83p.h $(LDIR)/c_ti83p.lib \
+		Makefile README.md LICENSE.txt
 
 $(EXEC).8xp: $(EXEC).bin
 	binpac8x.py -O conway $(EXEC).bin