diff --git a/SConscript.firmware b/SConscript.firmware
index 47a260e35..04f768b21 100644
--- a/SConscript.firmware
+++ b/SConscript.firmware
@@ -99,7 +99,7 @@ CPPDEFINES_MOD += [
     'USE_SCALAR_INV_BUILTIN',
     'USE_FIELD_10X26',
     'USE_SCALAR_8X32',
-    'USE_ECMULT_STATIC_PRECOMPUTATION',
+#    'USE_ECMULT_STATIC_PRECOMPUTATION',
     'USE_EXTERNAL_DEFAULT_CALLBACKS',
     ('ECMULT_WINDOW_SIZE', '8'),
     'ENABLE_MODULE_GENERATOR',