diff --git a/src/arch/arm/fastmodel/CortexA76/SConscript b/src/arch/arm/fastmodel/CortexA76/SConscript
index ce51268467..016f6134ea 100644
--- a/src/arch/arm/fastmodel/CortexA76/SConscript
+++ b/src/arch/arm/fastmodel/CortexA76/SConscript
@@ -39,8 +39,7 @@ for name in ('x1', 'x2', 'x3', 'x4'):
 
 SimObject('FastModelCortexA76.py', sim_objects=[
     'FastModelCortexA76', 'FastModelCortexA76Cluster'] +
-    [f'FastModelScxEvsCortexA76x{num}' for num in (1, 2, 3, 4)] +
-    [f'FastModelCortexA76x{num}' for num in (1, 2, 3, 4)])
+    [f'FastModelScxEvsCortexA76x{num}' for num in (1, 2, 3, 4)])
 Source('cortex_a76.cc')
 Source('evs.cc')
 Source('thread_context.cc')
diff --git a/src/arch/arm/fastmodel/CortexR52/SConscript b/src/arch/arm/fastmodel/CortexR52/SConscript
index 4e5e147a01..c1dc1fe136 100644
--- a/src/arch/arm/fastmodel/CortexR52/SConscript
+++ b/src/arch/arm/fastmodel/CortexR52/SConscript
@@ -40,8 +40,7 @@ for name in ('x1', 'x2', 'x3', 'x4'):
 
 SimObject('FastModelCortexR52.py', sim_objects=[
     'FastModelCortexR52', 'FastModelCortexR52Cluster'] +
-    [f'FastModelScxEvsCortexR52x{num}' for num in (1, 2, 3, 4)] +
-    [f'FastModelCortexR52x{num}' for num in (1, 2, 3, 4)])
+    [f'FastModelScxEvsCortexR52x{num}' for num in (1, 2, 3, 4)])
 Source('cortex_r52.cc')
 Source('evs.cc')
 Source('thread_context.cc')