diff --git a/rtl/cve2_core.sv b/rtl/cve2_core.sv
index 419fd2688f..253eca38ad 100644
--- a/rtl/cve2_core.sv
+++ b/rtl/cve2_core.sv
@@ -462,6 +462,7 @@ module cve2_core import cve2_pkg::*; #(
     .lsu_store_err_i(lsu_store_err),
 
     // Core-V Extension Interface (CV-X-IF)
+    .hart_id_i      (hart_id_i),
     // Issue Interface
     .x_issue_valid_o(x_issue_valid_o),
     .x_issue_ready_i(x_issue_ready_i),
diff --git a/rtl/cve2_id_stage.sv b/rtl/cve2_id_stage.sv
index 83efe6b564..997bbaeb8a 100644
--- a/rtl/cve2_id_stage.sv
+++ b/rtl/cve2_id_stage.sv
@@ -105,6 +105,7 @@ module cve2_id_stage #(
   input  logic [31:0]               lsu_addr_last_i,
 
   //  Core-V eXtension Interface (CV-X-IF)
+  input  logic [31:0]               hart_id_i,
   //  Issue Interface
   output logic                      x_issue_valid_o,
   input  logic                      x_issue_ready_i,
@@ -291,17 +292,23 @@ module cve2_id_stage #(
     assign coproc_done = (x_issue_valid_o & x_issue_ready_i & ~x_issue_resp_i.writeback) | (x_result_valid_i & x_result_i.we);
 
     // Issue Interface
-    assign x_issue_valid_o     = instr_executing & illegal_insn_dec & (id_fsm_q == FIRST_CYCLE);
-    assign x_issue_req_o.instr = instr_rdata_i;
+    assign x_issue_valid_o      = instr_executing & illegal_insn_dec & (id_fsm_q == FIRST_CYCLE);
+    assign x_issue_req_o.instr  = instr_rdata_i;
+    assign x_issue_req_o.id     = '0;
+    assign x_issue_req_o.hartid = hart_id_i;
 
     // Register Interface
     assign x_register_o.rs[0]    = rf_rdata_a_fwd;
     assign x_register_o.rs[1]    = rf_rdata_b_fwd;
     assign x_register_o.rs_valid = '1;
+    assign x_register_o.id       = '0;
+    assign x_register_o.hartid   = hart_id_i;
 
     // Commit Interface
     assign x_commit_valid_o       = 1'b1;
     assign x_commit_o.commit_kill = 1'b0;
+    assign x_commit_o.id          = '0;
+    assign x_commit_o.hartid      = hart_id_i;
 
     // Result Interface
     assign x_result_ready_o = 1'b1;
diff --git a/rtl/cve2_pkg.sv b/rtl/cve2_pkg.sv
index a78383fba7..88d99e3346 100644
--- a/rtl/cve2_pkg.sv
+++ b/rtl/cve2_pkg.sv
@@ -661,7 +661,7 @@ package cve2_pkg;
   parameter int unsigned X_ID_WIDTH     = 4;
   parameter int unsigned X_RFR_WIDTH    = 32;
   parameter int unsigned X_RFW_WIDTH    = 32;
-  parameter int unsigned X_HARTID_WIDTH = 1;
+  parameter int unsigned X_HARTID_WIDTH = 32;
   parameter int unsigned X_DUAL_READ    = 0;
   parameter int unsigned X_DUAL_WRITE   = 0;