diff --git a/src/arch/arm/ArmISA.py b/src/arch/arm/ArmISA.py
index 0a2bbc697f..298d8c3c1b 100644
--- a/src/arch/arm/ArmISA.py
+++ b/src/arch/arm/ArmISA.py
@@ -47,7 +47,7 @@ class DecoderFlavor(Enum): vals = ['Generic']
 
 class ArmDefaultSERelease(ArmRelease):
     extensions = [
-        'CRYPTO', 'FEAT_SVE', 'FEAT_LSE', 'TME', 'FEAT_SEL2'
+        'CRYPTO', 'FEAT_SVE', 'FEAT_LSE', 'TME'
     ]
 
 class ArmISA(BaseISA):