| Index: include/AdblockPlus/JsValue.h | 
| =================================================================== | 
| --- a/include/AdblockPlus/JsValue.h | 
| +++ b/include/AdblockPlus/JsValue.h | 
| @@ -120,17 +120,17 @@ | 
| /** | 
| * Invokes the value as a function (see `IsFunction()`). | 
| * @param params Optional list of parameters. | 
| * @param thisPtr Optional `this` value. | 
| * @return Value returned by the function. | 
| */ | 
| JsValue Call(const JsConstValueList& params = JsConstValueList(), | 
| - AdblockPlus::JsValuePtr thisPtr = AdblockPlus::JsValuePtr()) const; | 
| + const AdblockPlus::JsValuePtr& thisPtr = AdblockPlus::JsValuePtr()) const; | 
| /** | 
| * Invokes the value as a function (see `IsFunction()`) with single | 
| * parameter. | 
| * @param arg A single required parameter. | 
| * @return Value returned by the function. | 
| */ | 
| JsValue Call(const JsValue& arg) const; |