diff --git a/os/common/startup/ARMCMx/compilers/GCC/mk/startup_tm4c123x.mk b/os/common/startup/ARMCMx/compilers/GCC/mk/startup_tm4c123x.mk
index c1db8e2e..835facaf 100644
--- a/os/common/startup/ARMCMx/compilers/GCC/mk/startup_tm4c123x.mk
+++ b/os/common/startup/ARMCMx/compilers/GCC/mk/startup_tm4c123x.mk
@@ -13,6 +13,6 @@ STARTUPINC = $(CHIBIOS)/os/common/portability/GCC \
 STARTUPLD  = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/compilers/GCC/ld
 
 # Shared variables
-ALLASM  += $(STARTUPASM)
-ALLCSRC += $(STARTUPSRC)
-ALLINC  += $(STARTUPINC)
+ALLXASMSRC += $(STARTUPASM)
+ALLCSRC    += $(STARTUPSRC)
+ALLINC     += $(STARTUPINC)
diff --git a/os/common/startup/ARMCMx/compilers/GCC/mk/startup_tm4c129x.mk b/os/common/startup/ARMCMx/compilers/GCC/mk/startup_tm4c129x.mk
index cbe2dab5..ac4f76e1 100644
--- a/os/common/startup/ARMCMx/compilers/GCC/mk/startup_tm4c129x.mk
+++ b/os/common/startup/ARMCMx/compilers/GCC/mk/startup_tm4c129x.mk
@@ -13,6 +13,6 @@ STARTUPINC = $(CHIBIOS)/os/common/portability/GCC \
 STARTUPLD  = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/compilers/GCC/ld
 
 # Shared variables
-ALLASM  += $(STARTUPASM)
-ALLCSRC += $(STARTUPSRC)
-ALLINC  += $(STARTUPINC)
+ALLXASMSRC += $(STARTUPASM)
+ALLCSRC    += $(STARTUPSRC)
+ALLINC     += $(STARTUPINC)