diff --git a/lib/permalink.ts b/lib/permalink.ts
index 53fdac8..969efc1 100644
--- a/lib/permalink.ts
+++ b/lib/permalink.ts
@@ -50,7 +50,13 @@ class Permalink {
   }
 
   stringify(data) {
-    return this.rule.replace(rParam, (match, name) => data[name]);
+    return this.rule.replace(rParam, (match, name) => {
+      const descriptor = Object.getOwnPropertyDescriptor(data, name);
+      if (descriptor && typeof descriptor.get === 'function') {
+        throw new Error('Invalid permalink setting!');
+      }
+      return data[name];
+    });
   }
 }
 
diff --git a/test/permalink.spec.js b/test/permalink.spec.js
index d30b5db..4eb47b4 100644
--- a/test/permalink.spec.js
+++ b/test/permalink.spec.js
@@ -76,4 +76,20 @@ describe('Permalink', () => {
       title: 'test'
     }).should.eql('2014/01/31/test');
   });
+
+  it('stringify() - avoid infinite loops', () => {
+    const post = {
+      get path() {
+        return this.permalink;
+      },
+
+      get permalink() {
+        const permalink = new Permalink('/:permalink');
+        return permalink.stringify(post);
+      }
+    };
+
+    (() => post.path).should.throw('Invalid permalink setting!');
+    (() => post.permalink).should.throw('Invalid permalink setting!');
+  });
 });