diff --git a/Makefile b/Makefile
index b3c091b..d4717ad 100644
--- a/Makefile
+++ b/Makefile
@@ -163,6 +163,7 @@ c16_EMUCMD := $(VICE_HOME)xplus4 -ramsize 16 -TEDdsize -autoload
 cbm510_EMUCMD := $(VICE_HOME)xcbm2 -model 510 -VICIIdsize -autoload
 cbm610_EMUCMD := $(VICE_HOME)xcbm2 -model 610 -Crtcdsize -autoload
 atari_EMUCMD := atari800 -windowed -xl -pal -nopatchall -run
+apple2_EMUCMD :=
 
 ifeq ($(EMUCMD),)
   EMUCMD = $($(CC65TARGET)_EMUCMD)