diff --git a/rhino_modules/jsdoc/src/parser.js b/rhino_modules/jsdoc/src/parser.js
index 81dda599..5521afa3 100644
--- a/rhino_modules/jsdoc/src/parser.js
+++ b/rhino_modules/jsdoc/src/parser.js
@@ -310,14 +310,17 @@ exports.Parser.prototype.addDocletRef = function(e) {
 }
 
 exports.Parser.prototype.resolveEnum = function(e) {
-    var parent = currentParser.resolvePropertyParent(e.code.node);
+    var doop = require("jsdoc/util/doop").doop,
+        parent = currentParser.resolvePropertyParent(e.code.node);
     if (parent && parent.doclet.isEnum) {
         if (!parent.doclet.properties) { parent.doclet.properties = []; }
         // members of an enum inherit the enum's type
         if (parent.doclet.type && !e.doclet.type) { e.doclet.type = parent.doclet.type; }
         delete e.doclet.undocumented;
         e.doclet.defaultvalue = e.doclet.meta.code.value;
-        parent.doclet.properties.push(e.doclet);
+        // add the doclet to the parent's properties
+        // use a copy of the doclet to avoid circular references
+        parent.doclet.properties.push( doop(e.doclet) );
     }
 }
 
diff --git a/test/specs/tags/enumtag.js b/test/specs/tags/enumtag.js
index 44af4543..a7c32a28 100644
--- a/test/specs/tags/enumtag.js
+++ b/test/specs/tags/enumtag.js
@@ -22,4 +22,10 @@ describe("@enum tag", function() {
     it('If a @type is given for the property it is reflected in the property value.', function() {
         expect(tristate.properties[2].type.names.join(', ')).toEqual('boolean');
     });
+    
+    it('An enum does not contain any circular references.', function() {
+        var dump = require("jsdoc/util/dumper").dump;
+        
+        expect( dump(tristate) ).not.toMatch("<CircularRef>");
+    });
 });
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