diff --git a/play-services-maps-core-mapbox/src/main/kotlin/org/microg/gms/maps/mapbox/Pattern.kt b/play-services-maps-core-mapbox/src/main/kotlin/org/microg/gms/maps/mapbox/Pattern.kt
index 646a0906a72c6b82172257b4d72f6bacea806fdb..9cfd084a7173c26c5f5f5bf14156a6096de06bd6 100644
--- a/play-services-maps-core-mapbox/src/main/kotlin/org/microg/gms/maps/mapbox/Pattern.kt
+++ b/play-services-maps-core-mapbox/src/main/kotlin/org/microg/gms/maps/mapbox/Pattern.kt
@@ -18,7 +18,7 @@ fun PatternItem.getName(): String = when (this) {
 /**
  * Name of pattern, to identify it after it is added to map
  */
-fun MutableList<PatternItem>.getName(color: Int, strokeWidth: Float) = joinToString("-") {
+fun List<PatternItem>.getName(color: Int, strokeWidth: Float) = joinToString("-") {
     it.getName()
 } + "-${color}-width${strokeWidth}"
 
@@ -37,15 +37,15 @@ fun PatternItem.getWidth(strokeWidth: Float): Float = when (this) {
  * Gets width that a bitmap for this pattern would have if it were to be drawn
  * with respect to aspect ratio onto a canvas with height 1.
  */
-fun MutableList<PatternItem>.getWidth(strokeWidth: Float) = map { it.getWidth(strokeWidth) }.sum()
+fun List<PatternItem>.getWidth(strokeWidth: Float) = map { it.getWidth(strokeWidth) }.sum()
 
-fun MutableList<PatternItem>.makeBitmap(color: Int, strokeWidth: Float): Bitmap = makeBitmap(Paint().apply {
+fun List<PatternItem>.makeBitmap(color: Int, strokeWidth: Float): Bitmap = makeBitmap(Paint().apply {
     setColor(color)
     style = Paint.Style.FILL
 }, strokeWidth)
 
 
-fun MutableList<PatternItem>.makeBitmap(paint: Paint, strokeWidth: Float): Bitmap {
+fun List<PatternItem>.makeBitmap(paint: Paint, strokeWidth: Float): Bitmap {
 
     // Pattern aspect ratio is not respected by renderer
     val width = getWidth(strokeWidth).toInt()
diff --git a/play-services-maps-core-mapbox/src/main/kotlin/org/microg/gms/maps/mapbox/model/Circle.kt b/play-services-maps-core-mapbox/src/main/kotlin/org/microg/gms/maps/mapbox/model/Circle.kt
index 2ff823667ceaef3cfad3dab08e7d5519fc508244..93f3c1d32a8d62e257de8be1794066dc57a15e78 100644
--- a/play-services-maps-core-mapbox/src/main/kotlin/org/microg/gms/maps/mapbox/model/Circle.kt
+++ b/play-services-maps-core-mapbox/src/main/kotlin/org/microg/gms/maps/mapbox/model/Circle.kt
@@ -21,6 +21,7 @@ import android.util.Log
 import com.google.android.gms.dynamic.IObjectWrapper
 import com.google.android.gms.dynamic.ObjectWrapper
 import com.google.android.gms.dynamic.unwrap
+import com.google.android.gms.maps.model.Dash
 import com.google.android.gms.maps.model.LatLng
 import com.google.android.gms.maps.model.PatternItem
 import com.google.android.gms.maps.model.internal.ICircleDelegate
@@ -284,8 +285,7 @@ class CircleImpl(private val map: GoogleMapImpl, private val id: String, options
 
             it.lineWidth = strokeWidth / map.dpiFactor
 
-            line.annotation?.linePattern = null
-            strokePattern?.let { pattern ->
+            (strokePattern ?: listOf(Dash(1f))).let { pattern ->
                 val bitmapName = pattern.getName(strokeColor, strokeWidth)
                 map.addBitmap(bitmapName, pattern.makeBitmap(strokeColor, strokeWidth))
                 line.annotation?.linePattern = bitmapName