diff --git a/include/arch/aarch64/arch_helpers.h b/include/arch/aarch64/arch_helpers.h
index 10b0a0b..a6ff5af 100644
--- a/include/arch/aarch64/arch_helpers.h
+++ b/include/arch/aarch64/arch_helpers.h
@@ -250,6 +250,7 @@
 DEFINE_SYSREG_READ_FUNC(id_pfr1_el1)
 DEFINE_SYSREG_READ_FUNC(id_aa64isar0_el1)
 DEFINE_SYSREG_READ_FUNC(id_aa64isar1_el1)
+DEFINE_RENAME_SYSREG_READ_FUNC(id_aa64isar2_el1, ID_AA64ISAR2_EL1)
 DEFINE_SYSREG_READ_FUNC(id_aa64pfr0_el1)
 DEFINE_SYSREG_READ_FUNC(id_aa64pfr1_el1)
 DEFINE_SYSREG_READ_FUNC(id_aa64dfr0_el1)