diff --git a/build/platform.device.mak b/build/platform.device.mak
index c831bea22..4c6be1d4c 100644
--- a/build/platform.device.mak
+++ b/build/platform.device.mak
@@ -1,7 +1,7 @@
 TOOLCHAIN ?= arm-gcc
 USE_LIBA = 1
 EXE = elf
-EPSILON_SOFTWARE_PROMPT = update
+EPSILON_BOOT_PROMPT = update
 
 EPSILON_DEVICE_BENCH ?= 1
 SFLAGS += -DEPSILON_DEVICE_BENCH=$(EPSILON_DEVICE_BENCH)