diff --git a/include/arch/aarch64/arch_helpers.h b/include/arch/aarch64/arch_helpers.h
index d3f0df7..4e459bb 100644
--- a/include/arch/aarch64/arch_helpers.h
+++ b/include/arch/aarch64/arch_helpers.h
@@ -185,6 +185,7 @@
 DEFINE_SYSREG_READ_FUNC(id_aa64isar1_el1)
 DEFINE_SYSREG_READ_FUNC(id_aa64pfr0_el1)
 DEFINE_SYSREG_READ_FUNC(id_aa64dfr0_el1)
+DEFINE_SYSREG_READ_FUNC(id_afr0_el1)
 DEFINE_SYSREG_READ_FUNC(CurrentEl)
 DEFINE_SYSREG_READ_FUNC(ctr_el0)
 DEFINE_SYSREG_RW_FUNCS(daif)