diff --git a/core/SConscript.prodtest_emu b/core/SConscript.prodtest_emu
index eb64c03aef..053ba30d18 100644
--- a/core/SConscript.prodtest_emu
+++ b/core/SConscript.prodtest_emu
@@ -30,6 +30,7 @@ CCFLAGS_MOD = ''
 CPPPATH_MOD = []
 CPPDEFINES_MOD = [
     'KERNEL_MODE',
+    'SECURE_MODE',
     'AES_128',
     'USE_INSECURE_PRNG',
 ]