diff --git a/src/gos/gos_arduino.c b/src/gos/gos_arduino.c
index 4c01695a..0c01a30c 100644
--- a/src/gos/gos_arduino.c
+++ b/src/gos/gos_arduino.c
@@ -239,7 +239,7 @@ void gfxSleepMicroseconds(delaytime_t ms) {
 	#define STACK_DIR_UP		FALSE
 	#define MASK1				0x00000011
 	#define MASK2				0x00000000
-	#define STACK_BASE			9
+	#define STACK_BASE			12
 #else
 	#define AUTO_DETECT_MASK	TRUE
 	#define STACK_DIR_UP		stackdirup			// TRUE if the stack grow up instead of down
diff --git a/src/gos/gos_raw32.c b/src/gos/gos_raw32.c
index 1a2ba22b..529dcf79 100644
--- a/src/gos/gos_raw32.c
+++ b/src/gos/gos_raw32.c
@@ -449,7 +449,7 @@ void gfxSleepMicroseconds(delaytime_t ms) {
 		#define STACK_DIR_UP		FALSE
 		#define MASK1				0x00000011
 		#define MASK2				0x00000000
-		#define STACK_BASE			9
+		#define STACK_BASE			12
 	#else
 		#define AUTO_DETECT_MASK	TRUE
 		#define STACK_DIR_UP		stackdirup			// TRUE if the stack grow up instead of down