diff --git a/maps-kt-compose/src/commonMain/kotlin/space/kscience/maps/compose/MapView.kt b/maps-kt-compose/src/commonMain/kotlin/space/kscience/maps/compose/MapView.kt
index 7a2c75a..411fd0c 100644
--- a/maps-kt-compose/src/commonMain/kotlin/space/kscience/maps/compose/MapView.kt
+++ b/maps-kt-compose/src/commonMain/kotlin/space/kscience/maps/compose/MapView.kt
@@ -121,7 +121,7 @@ public fun MapView(
     featureStore: FeatureStore<Gmc>,
     initialViewPoint: ViewPoint<Gmc>? = null,
     initialRectangle: Rectangle<Gmc>? = null,
-    modifier: Modifier,
+    modifier: Modifier = Modifier.fillMaxSize(),
 ) {
     val mapState = MapCanvasState.remember(mapTileProvider, config, initialViewPoint, initialRectangle)
     MapView(mapState, mapTileProvider, featureStore, modifier)