diff --git a/minimal/mpconfigport.h b/minimal/mpconfigport.h
index c8f9838650def75241e679a2a0821d602d46520d..165b058794a7670cd2b1daf90b31bc5dcdb7d679 100644
--- a/minimal/mpconfigport.h
+++ b/minimal/mpconfigport.h
@@ -16,6 +16,7 @@
 #define MICROPY_MEM_STATS           (0)
 #define MICROPY_DEBUG_PRINTERS      (0)
 #define MICROPY_ENABLE_GC           (1)
+#define MICROPY_GC_ALLOC_THRESHOLD  (0)
 #define MICROPY_REPL_EVENT_DRIVEN   (0)
 #define MICROPY_HELPER_REPL         (1)
 #define MICROPY_HELPER_LEXER_UNIX   (0)