diff --git a/ports/atmel-samd/boards/gemma_m0/mpconfigboard.mk b/ports/atmel-samd/boards/gemma_m0/mpconfigboard.mk
index ca3eccbe4f..ae1cb0969f 100644
--- a/ports/atmel-samd/boards/gemma_m0/mpconfigboard.mk
+++ b/ports/atmel-samd/boards/gemma_m0/mpconfigboard.mk
@@ -11,3 +11,11 @@ LONGINT_IMPL = NONE
 CIRCUITPY_FULL_BUILD = 0
 
 SUPEROPT_GC = 0
+
+CFLAGS_BOARD = --param max-inline-insns-auto=15
+ifeq ($(TRANSLATION), zh_Latn_pinyin)
+CFLAGS_INLINE_LIMIT = 35
+endif
+ifeq ($(TRANSLATION), de_DE)
+CFLAGS_INLINE_LIMIT = 35
+endif
diff --git a/ports/atmel-samd/boards/trinket_m0/mpconfigboard.mk b/ports/atmel-samd/boards/trinket_m0/mpconfigboard.mk
index aab5efd5dc..2c9413d653 100644
--- a/ports/atmel-samd/boards/trinket_m0/mpconfigboard.mk
+++ b/ports/atmel-samd/boards/trinket_m0/mpconfigboard.mk
@@ -16,3 +16,6 @@ CFLAGS_BOARD = --param max-inline-insns-auto=15
 ifeq ($(TRANSLATION), zh_Latn_pinyin)
 CFLAGS_INLINE_LIMIT = 35
 endif
+ifeq ($(TRANSLATION), de_DE)
+CFLAGS_INLINE_LIMIT = 35
+endif