diff --git a/src/stream_omega_net.sv b/src/stream_omega_net.sv
index 88062cce..1194a792 100644
--- a/src/stream_omega_net.sv
+++ b/src/stream_omega_net.sv
@@ -263,7 +263,7 @@ module stream_omega_net #(
     // pragma translate_off
     `ifndef ASSERTS_OFF
     `ifndef VERILATOR
-    default disable iff rst_ni;
+    default disable iff (~rst_ni);
     `endif
     for (genvar i = 0; unsigned'(i) < NumInp; i++) begin : gen_sel_assertions
       assert property (@(posedge clk_i) disable iff (~rst_ni) (valid_i[i] |-> sel_i[i] < sel_oup_t'(NumOut))) else