diff --git a/ports/atmel-samd/boards/uchip/mpconfigboard.mk b/ports/atmel-samd/boards/uchip/mpconfigboard.mk
index 0e5eda0b8d..d08690a15a 100644
--- a/ports/atmel-samd/boards/uchip/mpconfigboard.mk
+++ b/ports/atmel-samd/boards/uchip/mpconfigboard.mk
@@ -12,3 +12,5 @@ CIRCUITPY_FULL_BUILD = 0
 
 # Always use aggressive inlining
 CFLAGS_INLINE_LIMIT = 45
+
+SUPEROPT_GC = 0