diff --git a/src/data/poi.cpp b/src/data/poi.cpp
index 22e8ccb6..08635d5d 100644
--- a/src/data/poi.cpp
+++ b/src/data/poi.cpp
@@ -14,6 +14,7 @@ POI::POI(QObject *parent) : QObject(parent)
 {
 	_errorLine = 0;
 	_radius = 1000;
+	_useDEM = false;
 }
 
 bool POI::loadFile(const QString &path, bool dir)
diff --git a/src/map/tile.h b/src/map/tile.h
index bbbec272..ce365b44 100644
--- a/src/map/tile.h
+++ b/src/map/tile.h
@@ -10,7 +10,7 @@
 class Tile
 {
 public:
-	Tile() {}
+	Tile() : _scaledSize(0) {}
 	Tile(const QPoint &xy, const QVariant &zoom, int scaledSize = 0,
 	  const RectD &bbox = RectD()) : _xy(xy), _zoom(zoom),
 	  _scaledSize(scaledSize), _bbox(bbox) {}