diff --git a/lib/index.js b/lib/index.js
index 0735583..7efc2a3 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -6,6 +6,22 @@ var crypto = require('crypto');
 
 module.exports = Cacher;
 
+function desymbolize(options) {
+  if (Array.isArray(options)) {
+    return options.map(desymbolize);
+  } else if (typeof options != "object") {
+    return options;
+  } else {
+    let d = Object.assign(Object.create(Object.getPrototypeOf(options)), options);
+    Object.getOwnPropertySymbols(options).forEach(k => {
+      d[`<${Symbol.keyFor(k)}>`] = options[k];
+      delete d[k];
+    });
+    Object.keys(d).forEach(k => d[k] = desymbolize(d[k]));
+    return d;
+  }
+}
+
 /**
  * Constructor for cacher
  */
@@ -240,7 +256,7 @@ Cacher.prototype.key = function key(sql) {
     return [this.cachePrefix, '__raw__', 'query', hash].join(':');
   }
   hash = crypto.createHash('sha1')
-    .update(CircularJSON.stringify(this.options, jsonReplacer))
+    .update(CircularJSON.stringify(desymbolize(this.options), jsonReplacer))
     .digest('hex');
   return [this.cachePrefix, this.modelName, this.method, hash].join(':');
 };