diff --git a/emulator/Makefile b/emulator/Makefile
index e733d45bfd..1f2976dd01 100644
--- a/emulator/Makefile
+++ b/emulator/Makefile
@@ -1,3 +1,5 @@
+EMULATOR := 1
+
 OBJS += setup.o
 
 OBJS += buttons.o