diff --git a/build/config.mak b/build/config.mak
index 700d927d7..963f434ee 100644
--- a/build/config.mak
+++ b/build/config.mak
@@ -16,5 +16,7 @@ include build/platform.$(PLATFORM).mak
 include build/toolchain.$(TOOLCHAIN).mak
 
 OS_WITH_ONBOARDING_APP ?= 1
+OS_WITH_SOFTWARE_UPDATE_PROMPT ?= 1
 
 SFLAGS += -DOS_WITH_ONBOARDING_APP=$(OS_WITH_ONBOARDING_APP)
+SFLAGS += -DOS_WITH_SOFTWARE_UPDATE_PROMPT=$(OS_WITH_SOFTWARE_UPDATE_PROMPT)
diff --git a/build/platform.blackbox.mak b/build/platform.blackbox.mak
index 013cf139a..10850d876 100644
--- a/build/platform.blackbox.mak
+++ b/build/platform.blackbox.mak
@@ -2,3 +2,4 @@ TOOLCHAIN ?= afl
 USE_LIBA ?= 0
 EXE = bin
 OS_WITH_ONBOARDING_APP ?= 0
+OS_WITH_SOFTWARE_UPDATE_PROMPT ?= 0
diff --git a/build/platform.emscripten.mak b/build/platform.emscripten.mak
index 09e4f1710..eaa3d0d05 100644
--- a/build/platform.emscripten.mak
+++ b/build/platform.emscripten.mak
@@ -2,3 +2,4 @@ TOOLCHAIN = emscripten
 USE_LIBA = 0
 EXE = html
 OS_WITH_ONBOARDING_APP ?= 0
+OS_WITH_SOFTWARE_UPDATE_PROMPT ?= 0
diff --git a/build/platform.simulator.mak b/build/platform.simulator.mak
index 6cfa2fd96..91eaeafed 100644
--- a/build/platform.simulator.mak
+++ b/build/platform.simulator.mak
@@ -2,3 +2,4 @@ TOOLCHAIN ?= host-clang
 USE_LIBA = 0
 EXE = elf
 OS_WITH_ONBOARDING_APP ?= 0
+OS_WITH_SOFTWARE_UPDATE_PROMPT ?= 0