diff --git a/include/lib/aarch64/arch_helpers.h b/include/lib/aarch64/arch_helpers.h
index 09365fb..d431baa 100644
--- a/include/lib/aarch64/arch_helpers.h
+++ b/include/lib/aarch64/arch_helpers.h
@@ -262,6 +262,8 @@
 
 DEFINE_SYSREG_RW_FUNCS(tpidr_el3)
 
+DEFINE_SYSREG_RW_FUNCS(cntvoff_el2)
+
 DEFINE_SYSREG_RW_FUNCS(vpidr_el2)
 DEFINE_SYSREG_RW_FUNCS(vmpidr_el2)