diff --git a/hw/noc_wrap.sv b/hw/noc_wrap.sv
index 4b9f6f94..5d99b641 100644
--- a/hw/noc_wrap.sv
+++ b/hw/noc_wrap.sv
@@ -94,8 +94,8 @@ module noc_wrap #(
 )(
   input  logic clk_i,
   input  logic rst_ni,
-  input  logic [NumNocSlv-1:0] noc_ext_slv_isolate_i,
-  output logic [NumNocSlv-1:0] noc_ext_slv_isolated_o,
+  input  logic [NumNocMst-1:0] noc_ext_slv_isolate_i,
+  output logic [NumNocMst-1:0] noc_ext_slv_isolated_o,
   input  noc_slv_req_t cheshire_slv_req_i,
   output noc_slv_rsp_t cheshire_slv_rsp_o,
   output noc_mst_req_t cheshire_mst_req_o,