diff --git a/Makefile b/Makefile
index f4589d9..1b986c4 100644
--- a/Makefile
+++ b/Makefile
@@ -914,6 +914,7 @@
 $(eval $(call assert_boolean,ERRATA_SPECULATIVE_AT))
 $(eval $(call assert_boolean,RAS_TRAP_LOWER_EL_ERR_ACCESS))
 $(eval $(call assert_boolean,COT_DESC_IN_DTB))
+$(eval $(call assert_boolean,USE_SP804_TIMER))
 
 $(eval $(call assert_numeric,ARM_ARCH_MAJOR))
 $(eval $(call assert_numeric,ARM_ARCH_MINOR))
@@ -995,6 +996,7 @@
 $(eval $(call add_define,ERRATA_SPECULATIVE_AT))
 $(eval $(call add_define,RAS_TRAP_LOWER_EL_ERR_ACCESS))
 $(eval $(call add_define,COT_DESC_IN_DTB))
+$(eval $(call add_define,USE_SP804_TIMER))
 
 ifeq (${SANITIZE_UB},trap)
         $(eval $(call add_define,MONITOR_TRAPS))