diff --git a/kmath-geometry/src/commonMain/kotlin/space/kscience/kmath/geometry/Circle2D.kt b/kmath-geometry/src/commonMain/kotlin/space/kscience/kmath/geometry/Circle2D.kt
index 5a25fef7d..162130908 100644
--- a/kmath-geometry/src/commonMain/kotlin/space/kscience/kmath/geometry/Circle2D.kt
+++ b/kmath-geometry/src/commonMain/kotlin/space/kscience/kmath/geometry/Circle2D.kt
@@ -10,7 +10,7 @@ import kotlin.math.PI
 /**
  * A circle in 2D space
  */
-public class Circle2D(
+public data class Circle2D(
     public val center: DoubleVector2D,
     public val radius: Double
 )