diff --git a/benchmarks/coremark/Makefile b/benchmarks/coremark/Makefile
index 2274d0373..5965e1bf3 100644
--- a/benchmarks/coremark/Makefile
+++ b/benchmarks/coremark/Makefile
@@ -39,6 +39,7 @@ VPATH += $(COREMARK_UNPACKNAME)$(DELIM)posix
 DEPPATH += --dep-path $(COREMARK_UNPACKNAME)
 DEPPATH += --dep-path $(COREMARK_UNPACKNAME)$(DELIM)posix
 
+CFLAGS += -Dcrc16=coremark_crc16
 CFLAGS += -Wno-strict-prototypes -Wno-undef
 
 ifeq ($(CONFIG_COREMARK_MULTITHREAD_OVERRIDE),y)