diff --git a/bricks/_common/mpconfigport.h b/bricks/_common/mpconfigport.h
index 4deebdc7f..e4b828ce3 100644
--- a/bricks/_common/mpconfigport.h
+++ b/bricks/_common/mpconfigport.h
@@ -50,7 +50,7 @@
 #define MICROPY_DEBUG_PRINTERS                  (0)
 #define MICROPY_ENABLE_GC                       (1)
 #define MICROPY_ENABLE_FINALISER                (1)
-#define MICROPY_GC_ALLOC_THRESHOLD              (0)
+#define MICROPY_GC_ALLOC_THRESHOLD              (PYBRICKS_OPT_EXTRA_LEVEL2)
 #define MICROPY_STACK_CHECK                     (1)
 #define MICROPY_HELPER_REPL                     (1)
 #define MICROPY_HELPER_LEXER_UNIX               (0)