diff --git a/tftf_config/fvp-cpu-extensions b/tftf_config/fvp-cpu-extensions
index 3d880c9..b78b440 100644
--- a/tftf_config/fvp-cpu-extensions
+++ b/tftf_config/fvp-cpu-extensions
@@ -1,3 +1,5 @@
+ARM_ARCH_FEATURE=memtag
+ARM_ARCH_MINOR=5
 CROSS_COMPILE=aarch64-none-elf-
 PLAT=fvp
 TESTS=cpu-extensions