diff --git a/os/common/ports/ARMCMx/compilers/GCC/mk/startup_nrf51.mk b/os/common/ports/ARMCMx/compilers/GCC/mk/startup_nrf51.mk
index 2824ae7c..81d53d9d 100644
--- a/os/common/ports/ARMCMx/compilers/GCC/mk/startup_nrf51.mk
+++ b/os/common/ports/ARMCMx/compilers/GCC/mk/startup_nrf51.mk
@@ -1,11 +1,10 @@
 # List of the ChibiOS generic NRF51 startup and CMSIS files.
-STARTUPSRC = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/crt1.c \
-             $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/vectors.c
+STARTUPSRC = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/crt1.c \
+             $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/vectors.c
 
-STARTUPASM = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/crt0_v6m.s
+STARTUPASM = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/crt0_v6m.s
 
-STARTUPINC = $(CHIBIOS_CONTRIB)/os/common/ports/ARMCMx/devices/NRF51822 \
-             $(CHIBIOS)/os/ext/CMSIS/include
-
-STARTUPLD  = $(CHIBIOS_CONTRIB)/os/common/ports/ARMCMx/compilers/GCC/ld
+STARTUPINC = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/devices/NRF51822 \
+             $(CHIBIOS)/os/common/ext/CMSIS/include
 
+STARTUPLD  = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/compilers/GCC/ld