diff --git a/ion/src/simulator/Makefile b/ion/src/simulator/Makefile
index 8503cb977..a60779a7f 100644
--- a/ion/src/simulator/Makefile
+++ b/ion/src/simulator/Makefile
@@ -1,7 +1,6 @@
 objs += $(addprefix ion/src/simulator/, \
   init.o\
   led.o\
-  usb.o\
 )
 
 objs += $(addprefix ion/src/simulator/boot/, main.o)
@@ -18,6 +17,7 @@ objs += $(addprefix ion/src/shared/, \
   dummy/backlight.o \
   dummy/battery.o \
   dummy/fcc_id.o \
+  dummy/usb.o \
 )
 
 SFLAGS += `fltk-config --cflags`
diff --git a/ion/src/simulator/usb.cpp b/ion/src/simulator/usb.cpp
deleted file mode 100644
index bc077012e..000000000
--- a/ion/src/simulator/usb.cpp
+++ /dev/null
@@ -1,8 +0,0 @@
-#include <ion/usb.h>
-
-bool Ion::USB::isPlugged() {
-  return false;
-}
-
-void Ion::USB::DFU() {
-}