diff --git a/cpu/Makefile.include.cortexm_common b/cpu/Makefile.include.cortexm_common
index a430cf7dc5..cf19ddc278 100644
--- a/cpu/Makefile.include.cortexm_common
+++ b/cpu/Makefile.include.cortexm_common
@@ -33,7 +33,7 @@ export INCLUDES += -I$(RIOTCPU)/$(CPU)/include
 # Explicitly tell the linker to link the startup code.
 #   Without this the interrupt vectors will not be linked correctly!
 ifeq ($(COMMON_STARTUP),)
-export UNDEF += $(BINDIR)cpu/startup.o
+export UNDEF += $(BINDIR)cpu/vectors.o
 endif
 
 # CPU depends on the cortex-m common module, so include it: