diff --git a/legacy/demo/Makefile b/legacy/demo/Makefile
index eba48a4f2e..6fd3f0985a 100644
--- a/legacy/demo/Makefile
+++ b/legacy/demo/Makefile
@@ -3,6 +3,7 @@ APPVER = 1.0.0
 NAME  = demo
 
 OBJS += demo.o
+OBJS += startup.o
 
 OBJS += ../vendor/trezor-crypto/bignum.o
 OBJS += ../vendor/trezor-crypto/bip32.o
diff --git a/legacy/demo/startup.S b/legacy/demo/startup.S
new file mode 120000
index 0000000000..efb899b49e
--- /dev/null
+++ b/legacy/demo/startup.S
@@ -0,0 +1 @@
+../bootloader/startup.S
\ No newline at end of file