diff --git a/src/V3AstNodeExpr.h b/src/V3AstNodeExpr.h
index 002b980c5..a4126dad0 100644
--- a/src/V3AstNodeExpr.h
+++ b/src/V3AstNodeExpr.h
@@ -1144,9 +1144,7 @@ public:
     string name() const override VL_MT_STABLE { return itemp()->name(); }
     int instrCount() const override { return 0; }
     const char* broken() const override;
-    void cloneRelink() override {
-        if (m_itemp->clonep()) m_itemp = m_itemp->clonep();
-    }
+    void cloneRelink() override;
     bool same(const AstNode* samep) const override {
         const AstEnumItemRef* const sp = static_cast<const AstEnumItemRef*>(samep);
         return itemp() == sp->itemp();
diff --git a/src/V3AstNodes.cpp b/src/V3AstNodes.cpp
index 507bcfbbc..7ba41a926 100644
--- a/src/V3AstNodes.cpp
+++ b/src/V3AstNodes.cpp
@@ -1614,6 +1614,12 @@ const char* AstEnumItemRef::broken() const {
     BROKEN_RTN(m_classOrPackagep && !m_classOrPackagep->brokeExists());
     return nullptr;
 }
+void AstEnumItemRef::cloneRelink() {
+    if (m_itemp->clonep()) m_itemp = m_itemp->clonep();
+    if (m_classOrPackagep && m_classOrPackagep->clonep()) {
+        m_classOrPackagep = m_classOrPackagep->clonep();
+    }
+}
 void AstIfaceRefDType::dump(std::ostream& str) const {
     this->AstNodeDType::dump(str);
     if (cellName() != "") str << " cell=" << cellName();
diff --git a/test_regress/t/t_enum_param_class.pl b/test_regress/t/t_enum_param_class.pl
new file mode 100755
index 000000000..b46d46042
--- /dev/null
+++ b/test_regress/t/t_enum_param_class.pl
@@ -0,0 +1,21 @@
+#!/usr/bin/env perl
+if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2003 by Wilson Snyder. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
+# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+scenarios(simulator => 1);
+
+compile(
+    );
+
+execute(
+    check_finished => 1,
+    );
+
+ok(1);
+1;
diff --git a/test_regress/t/t_enum_param_class.v b/test_regress/t/t_enum_param_class.v
new file mode 100644
index 000000000..c59f4b523
--- /dev/null
+++ b/test_regress/t/t_enum_param_class.v
@@ -0,0 +1,37 @@
+// DESCRIPTION: Verilator: Verilog Test module
+//
+// This file ONLY is placed under the Creative Commons Public Domain, for
+// any use, without warranty, 2023 by Anthony Donlon.
+// SPDX-License-Identifier: CC0-1.0
+
+/// (See bug4551)
+/// Verilator creates an AstEnumItemRef for each reference. If the enum is inside a parameterizable class/module, it
+/// should be handled properly.
+
+class ClsParam #(
+   int A = 0
+);
+    typedef enum int {
+        EN_A = A + 0,
+        EN_B = A + 1,
+        EN_C = A + 2
+    } enums_t;
+
+    int val = EN_C;
+    function int test();
+        return EN_C;
+    endfunction
+endclass;
+
+module t;
+    // localparam ENUM_VAL = ClsParam#(100)::EN_C; // TODO: Unsupported: dotted expressions in parameters
+    // $info("ENUM_VAL: %0d", ENUM_VAL);
+
+    ClsParam#(100) cls = new;
+    initial begin
+        if (cls.test() != 102) $stop;
+        $write("*-* All Finished *-*\n");
+        $finish;
+    end
+
+endmodule