diff --git a/MSP-EXP430F5438-CC256x/example-ble/Makefile b/MSP-EXP430F5438-CC256x/example-ble/Makefile
index b0b3784c2..3a9b3158e 100644
--- a/MSP-EXP430F5438-CC256x/example-ble/Makefile
+++ b/MSP-EXP430F5438-CC256x/example-ble/Makefile
@@ -7,8 +7,8 @@
 BTSTACK_ROOT = ../..
 
 CC      = msp430-gcc
-CFLAGS  = -mmcu=msp430x5438 -g -Os -Wall -I. -I../src -I../firmware -I${BTSTACK_ROOT} -I${BTSTACK_ROOT}/chipset-cc256x -I${BTSTACK_ROOT}/src -I${BTSTACK_ROOT}/ble -I${BTSTACK_ROOT}/include
-LDFLAGS = -mmcu=msp430x5438
+CFLAGS  = -mmcu=msp430f5438a -g -Os -Wall -I. -I../src -I../firmware -I${BTSTACK_ROOT} -I${BTSTACK_ROOT}/chipset-cc256x -I${BTSTACK_ROOT}/src -I${BTSTACK_ROOT}/ble -I${BTSTACK_ROOT}/include
+LDFLAGS = -mmcu=msp430f5438a
 
 CORE   = \
     ../src/hal_tick.c	                          \
diff --git a/MSP-EXP430F5438-CC256x/example/Makefile b/MSP-EXP430F5438-CC256x/example/Makefile
index 6072d632b..ce047a23e 100644
--- a/MSP-EXP430F5438-CC256x/example/Makefile
+++ b/MSP-EXP430F5438-CC256x/example/Makefile
@@ -9,8 +9,8 @@
 BTSTACK_ROOT = ../..
 
 CC      = msp430-gcc
-CFLAGS  = -mmcu=msp430x5438 -g -Os -Wall -I. -I../src -I../firmware -I${BTSTACK_ROOT} -I${BTSTACK_ROOT}/chipset-cc256x -I${BTSTACK_ROOT}/src -I${BTSTACK_ROOT}/include
-LDFLAGS = -mmcu=msp430x5438
+CFLAGS  = -mmcu=msp430f5438a -g -Os -Wall -I. -I../src -I../firmware -I${BTSTACK_ROOT} -I${BTSTACK_ROOT}/chipset-cc256x -I${BTSTACK_ROOT}/src -I${BTSTACK_ROOT}/include
+LDFLAGS = -mmcu=msp430f5438a
 
 CORE   = \
     ../src/hal_tick.c	                          \