diff --git a/build.gradle b/build.gradle
index ab9fa84a..530f6c8b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -90,7 +90,8 @@ allprojects {
         kotlinOptions {
             freeCompilerArgs += [
                     "-opt-in=kotlin.RequiresOptIn",
-                    "-Xinline-classes"
+                    "-Xinline-classes",
+                    "-Xexpect-actual-classes"
             ]
         }
     }
diff --git a/utils/src/commonMain/kotlin/com/motorro/rxlcemodel/common/Clock.kt b/utils/src/commonMain/kotlin/com/motorro/rxlcemodel/common/Clock.kt
index 827dcf89..054db8c4 100644
--- a/utils/src/commonMain/kotlin/com/motorro/rxlcemodel/common/Clock.kt
+++ b/utils/src/commonMain/kotlin/com/motorro/rxlcemodel/common/Clock.kt
@@ -26,11 +26,8 @@ interface Clock {
         /**
          * System clock
          */
-        val SYSTEM: Clock = SystemClock
+        val SYSTEM: Clock = getSystemClock()
     }
 }
 
-/**
- * System clock
- */
-internal expect object SystemClock: Clock
\ No newline at end of file
+internal expect fun getSystemClock(): Clock
diff --git a/utils/src/jsMain/kotlin/com/motorro/rxlcemodel/common/SystemClock.kt b/utils/src/jsMain/kotlin/com/motorro/rxlcemodel/common/SystemClock.kt
index 25fd88bb..be20edbe 100644
--- a/utils/src/jsMain/kotlin/com/motorro/rxlcemodel/common/SystemClock.kt
+++ b/utils/src/jsMain/kotlin/com/motorro/rxlcemodel/common/SystemClock.kt
@@ -15,10 +15,7 @@ package com.motorro.rxlcemodel.common
 
 import kotlin.js.Date
 
-/**
- * System clock
- */
-internal actual object SystemClock : Clock {
+internal actual fun getSystemClock(): Clock = object : Clock {
     /**
      * Current milliseconds value
      */
diff --git a/utils/src/jvmMain/kotlin/com/motorro/rxlcemodel/common/SystemClock.kt b/utils/src/jvmMain/kotlin/com/motorro/rxlcemodel/common/SystemClock.kt
index 74bf9d0d..a6d1dcd2 100644
--- a/utils/src/jvmMain/kotlin/com/motorro/rxlcemodel/common/SystemClock.kt
+++ b/utils/src/jvmMain/kotlin/com/motorro/rxlcemodel/common/SystemClock.kt
@@ -13,10 +13,7 @@
 
 package com.motorro.rxlcemodel.common
 
-/**
- * System clock
- */
-internal actual object SystemClock : Clock {
+internal actual fun getSystemClock(): Clock = object : Clock {
     /**
      * Current milliseconds value
      */