diff --git a/OsmAnd/src/net/osmand/plus/activities/MapActivity.java b/OsmAnd/src/net/osmand/plus/activities/MapActivity.java
index 4b81d7f2f9..0924232f2d 100644
--- a/OsmAnd/src/net/osmand/plus/activities/MapActivity.java
+++ b/OsmAnd/src/net/osmand/plus/activities/MapActivity.java
@@ -548,6 +548,10 @@ public class MapActivity extends AccessibleActivity {
 			AccessibleToast.makeText(this, R.string.edit_tilesource_maxzoom, Toast.LENGTH_SHORT).show(); //$NON-NLS-1$
 			return;
 		}
+		if(newZoom < 1) {
+			AccessibleToast.makeText(this, R.string.edit_tilesource_minzoom, Toast.LENGTH_SHORT).show(); //$NON-NLS-1$
+			return;
+		}
 		mapView.getAnimatedDraggingThread().startZooming(newZoom, zoomFrac, changeLocation);
 		if (app.accessibilityEnabled())
 			AccessibleToast.makeText(this, getString(R.string.zoomIs) + " " + newZoom, Toast.LENGTH_SHORT).show(); //$NON-NLS-1$