diff --git a/dataengines/weather/ions/wetter.com/ion_wettercom.cpp b/dataengines/weather/ions/wetter.com/ion_wettercom.cpp
index 07c188d7252cdf157c6f78281c67c44817dbe0e9..e764d79f614624cdfcc20b25aa22dc0034dd8f73 100644
--- a/dataengines/weather/ions/wetter.com/ion_wettercom.cpp
+++ b/dataengines/weather/ions/wetter.com/ion_wettercom.cpp
@@ -800,7 +800,7 @@ WeatherData::ForecastInfo WeatherData::ForecastPeriod::getWeather() const
     return result;
 }
 
-int WeatherData::ForecastPeriod::getMaxTemp(QVector<WeatherData::ForecastInfo *> forecastInfos) const
+int WeatherData::ForecastPeriod::getMaxTemp(const QVector<WeatherData::ForecastInfo*>& forecastInfos) const
 {
     int result = -273;
     foreach(const WeatherData::ForecastInfo * forecast, forecastInfos) {
@@ -810,7 +810,7 @@ int WeatherData::ForecastPeriod::getMaxTemp(QVector<WeatherData::ForecastInfo *>
     return result;
 }
 
-int WeatherData::ForecastPeriod::getMinTemp(QVector<WeatherData::ForecastInfo *> forecastInfos) const
+int WeatherData::ForecastPeriod::getMinTemp(const QVector<WeatherData::ForecastInfo*>& forecastInfos) const
 {
     int result = 100;
     foreach(const WeatherData::ForecastInfo * forecast, forecastInfos) {
diff --git a/dataengines/weather/ions/wetter.com/ion_wettercom.h b/dataengines/weather/ions/wetter.com/ion_wettercom.h
index 77772fb256e30779bb4de092c41ca520b52567e7..f9f5853a7fb4828aae15e0ecba2b7011f78a34e2 100644
--- a/dataengines/weather/ions/wetter.com/ion_wettercom.h
+++ b/dataengines/weather/ions/wetter.com/ion_wettercom.h
@@ -87,8 +87,8 @@ public:
         QVector<WeatherData::ForecastInfo *> dayForecasts;
         QVector<WeatherData::ForecastInfo *> nightForecasts;
     private:
-        int getMaxTemp(QVector<WeatherData::ForecastInfo *> forecastInfos) const;
-        int getMinTemp(QVector<WeatherData::ForecastInfo *> forecastInfos) const;
+        int getMaxTemp(const QVector<WeatherData::ForecastInfo*>& forecastInfos) const;
+        int getMinTemp(const QVector<WeatherData::ForecastInfo*>& forecastInfos) const;
     };
 
     QVector<WeatherData::ForecastPeriod *> forecasts;