diff --git a/kmath-core/src/commonMain/kotlin/scientifik/kmath/operations/Fields.kt b/kmath-core/src/commonMain/kotlin/scientifik/kmath/operations/Fields.kt
index 5702803fc..3e4f47869 100644
--- a/kmath-core/src/commonMain/kotlin/scientifik/kmath/operations/Fields.kt
+++ b/kmath-core/src/commonMain/kotlin/scientifik/kmath/operations/Fields.kt
@@ -38,9 +38,9 @@ object RealField : ExtendedField<Real>, Norm<Real, Real> {
 /**
  * Real field element wrapping double.
  *
- * TODO inline does not work due to compiler bug. Waiting for fix
+ * TODO inline does not work due to compiler bug. Waiting for fix for KT-27586
  */
-class Real(val value: Double) : FieldElement<Real, RealField> {
+inline class Real(val value: Double) : FieldElement<Real, RealField> {
 
     //values are dynamically calculated to save memory
     override val self
diff --git a/kmath-core/src/commonTest/kotlin/scientifik/kmath/operations/RealFieldTest.kt b/kmath-core/src/commonTest/kotlin/scientifik/kmath/operations/RealFieldTest.kt
index 551bf0ee4..0d33204df 100644
--- a/kmath-core/src/commonTest/kotlin/scientifik/kmath/operations/RealFieldTest.kt
+++ b/kmath-core/src/commonTest/kotlin/scientifik/kmath/operations/RealFieldTest.kt
@@ -6,6 +6,8 @@ import kotlin.test.assertEquals
 class RealFieldTest {
     @Test
     fun testSqrt() {
+
+        //fails because KT-27586
         val sqrt = with(RealField) {
             sqrt(  25 * one)
         }