diff --git a/src/finn/custom_op/fpgadataflow/hlscustomop.py b/src/finn/custom_op/fpgadataflow/hlscustomop.py
index 01b94c20ca..bc59c69192 100644
--- a/src/finn/custom_op/fpgadataflow/hlscustomop.py
+++ b/src/finn/custom_op/fpgadataflow/hlscustomop.py
@@ -600,6 +600,7 @@ def rtlsim_multi_io(self, sim, io_dict):
             trace_file=trace_file,
             sname=sname,
             liveness_threshold=pyverilate_get_liveness_threshold_cycles(),
+            do_reset=True,
         )
         self.set_nodeattr("cycles_rtlsim", total_cycle_count)