diff --git a/configs/common/Simulation.py b/configs/common/Simulation.py
index 3b9efc0c93..24167731a1 100644
--- a/configs/common/Simulation.py
+++ b/configs/common/Simulation.py
@@ -488,6 +488,7 @@ def run(options, root, testsys, cpu_class):
                     options.indirect_bp_type)
                 switch_cpus[i].branchPred.indirectBranchPred = \
                     IndirectBPClass()
+            switch_cpus[i].createThreads()
 
         # If elastic tracing is enabled attach the elastic trace probe
         # to the switch CPUs