diff --git a/ti83/Makefile b/ti83/Makefile
index 5dc40e0..abb7f8f 100644
--- a/ti83/Makefile
+++ b/ti83/Makefile
@@ -2,7 +2,13 @@ UNZIP = tar xf
 
 LBLRW_UPSTREAM = https://www.ticalc.org/pub/83plus/asm/programs/lblrw.zip
 
-all: LblRW.8xp Schedule.8xp
+all: Schedule Zonk
+
+.PHONY: Zonk
+Zonk: Zonk.8xp
+
+.PHONY: Schedule
+Schedule: LblRW.8xp Schedule.8xp
 
 LblRW.8xp: lblrw.zip
 	$(UNZIP) lblrw.zip LblRW.8xp