diff --git a/kmath-histograms/src/commonMain/kotlin/scientifik/kmath/histogram/RealHistogram.kt b/kmath-histograms/src/commonMain/kotlin/scientifik/kmath/histogram/RealHistogram.kt
index 4438f5d60..f9d815421 100644
--- a/kmath-histograms/src/commonMain/kotlin/scientifik/kmath/histogram/RealHistogram.kt
+++ b/kmath-histograms/src/commonMain/kotlin/scientifik/kmath/histogram/RealHistogram.kt
@@ -1,8 +1,8 @@
 package scientifik.kmath.histogram
 
 import scientifik.kmath.linear.Point
-import scientifik.kmath.real.asVector
 import scientifik.kmath.operations.SpaceOperations
+import scientifik.kmath.real.asVector
 import scientifik.kmath.structures.*
 import kotlin.math.floor
 
@@ -21,7 +21,7 @@ data class BinDef<T : Comparable<T>>(val space: SpaceOperations<Point<T>>, val c
 
 class MultivariateBin<T : Comparable<T>>(val def: BinDef<T>, override val value: Number) : Bin<T> {
 
-    override fun contains(vector: Point<out T>): Boolean = def.contains(vector)
+    override fun contains(point: Point<T>): Boolean = def.contains(point)
 
     override val dimension: Int
         get() = def.center.size
diff --git a/kmath-histograms/src/jvmMain/kotlin/scientifik/kmath/histogram/UnivariateHistogram.kt b/kmath-histograms/src/jvmMain/kotlin/scientifik/kmath/histogram/UnivariateHistogram.kt
index dcc5ac0eb..af01205bf 100644
--- a/kmath-histograms/src/jvmMain/kotlin/scientifik/kmath/histogram/UnivariateHistogram.kt
+++ b/kmath-histograms/src/jvmMain/kotlin/scientifik/kmath/histogram/UnivariateHistogram.kt
@@ -16,7 +16,7 @@ class UnivariateBin(val position: Double, val size: Double, val counter: LongCou
 
     operator fun contains(value: Double): Boolean = value in (position - size / 2)..(position + size / 2)
 
-    override fun contains(vector: Buffer<out Double>): Boolean = contains(vector[0])
+    override fun contains(point: Buffer<Double>): Boolean = contains(point[0])
 
     internal operator fun inc() = this.also { counter.increment() }