diff --git a/reaktive/src/jsCommonMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt b/reaktive/src/jsCommonMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt
index 53e794eeb..352872e88 100644
--- a/reaktive/src/jsCommonMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt
+++ b/reaktive/src/jsCommonMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt
@@ -1,9 +1,11 @@
 package com.badoo.reaktive.scheduler
 
-internal expect fun jsSetTimeout(task: () -> Unit, delayMillis: Int): Any
+internal expect class TimeoutId
 
-internal expect fun jsSetInterval(task: () -> Unit, delayMillis: Int): Any
+internal expect fun jsSetTimeout(task: () -> Unit, delayMillis: Int): TimeoutId
 
-internal expect fun jsClearTimeout(id: Any)
+internal expect fun jsSetInterval(task: () -> Unit, delayMillis: Int): TimeoutId
 
-internal expect fun jsClearInterval(id: Any)
+internal expect fun jsClearTimeout(id: TimeoutId)
+
+internal expect fun jsClearInterval(id: TimeoutId)
diff --git a/reaktive/src/jsCommonMain/kotlin/com/badoo/reaktive/scheduler/MainScheduler.kt b/reaktive/src/jsCommonMain/kotlin/com/badoo/reaktive/scheduler/MainScheduler.kt
index 3bf5870ab..b31fb5e61 100644
--- a/reaktive/src/jsCommonMain/kotlin/com/badoo/reaktive/scheduler/MainScheduler.kt
+++ b/reaktive/src/jsCommonMain/kotlin/com/badoo/reaktive/scheduler/MainScheduler.kt
@@ -20,8 +20,8 @@ internal class MainScheduler : Scheduler {
 
         private var _isDisposed = false
 
-        private val timeoutIds = mutableSetOf<Any>()
-        private val intervalIds = mutableSetOf<Any>()
+        private val timeoutIds = mutableSetOf<TimeoutId>()
+        private val intervalIds = mutableSetOf<TimeoutId>()
 
         init {
             disposables += this
diff --git a/reaktive/src/jsMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt b/reaktive/src/jsMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt
index ab5c43818..37c7939bd 100644
--- a/reaktive/src/jsMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt
+++ b/reaktive/src/jsMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt
@@ -2,16 +2,18 @@ package com.badoo.reaktive.scheduler
 
 import com.badoo.reaktive.global.external.globalThis
 
-internal actual fun jsSetTimeout(task: () -> Unit, delayMillis: Int): Any =
-    globalThis.setTimeout(task, delayMillis)
+internal actual class TimeoutId(val id: dynamic)
 
-internal actual fun jsSetInterval(task: () -> Unit, delayMillis: Int): Any =
-    globalThis.setInterval(task, delayMillis)
+internal actual fun jsSetTimeout(task: () -> Unit, delayMillis: Int): TimeoutId =
+    TimeoutId(globalThis.setTimeout(task, delayMillis))
 
-internal actual fun jsClearTimeout(id: Any) {
-    globalThis.clearTimeout(id)
+internal actual fun jsSetInterval(task: () -> Unit, delayMillis: Int): TimeoutId =
+    TimeoutId(globalThis.setInterval(task, delayMillis))
+
+internal actual fun jsClearTimeout(id: TimeoutId) {
+    globalThis.clearTimeout(id.id)
 }
 
-internal actual fun jsClearInterval(id: Any) {
-    globalThis.clearInterval(id)
+internal actual fun jsClearInterval(id: TimeoutId) {
+    globalThis.clearInterval(id.id)
 }
diff --git a/reaktive/src/wasmJsMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt b/reaktive/src/wasmJsMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt
index 08e9636e9..326076b46 100644
--- a/reaktive/src/wasmJsMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt
+++ b/reaktive/src/wasmJsMain/kotlin/com/badoo/reaktive/scheduler/JsFunctions.kt
@@ -1,15 +1,35 @@
 package com.badoo.reaktive.scheduler
 
-internal actual fun jsSetTimeout(task: () -> Unit, delayMillis: Int): Any =
+internal actual class TimeoutId(val id: JsAny)
+
+internal actual fun jsSetTimeout(task: () -> Unit, delayMillis: Int): TimeoutId =
+    TimeoutId(jsSetTimeoutInternal(task, delayMillis))
+
+internal actual fun jsSetInterval(task: () -> Unit, delayMillis: Int): TimeoutId =
+    TimeoutId(jsSetIntervalInternal(task, delayMillis))
+
+internal actual fun jsClearTimeout(id: TimeoutId) {
+    jsClearTimeoutInternal(id.id)
+}
+
+internal actual fun jsClearInterval(id: TimeoutId) {
+    jsClearIntervalInternal(id.id)
+}
+
+@Suppress("UnusedPrivateMember")
+private fun jsSetTimeoutInternal(task: () -> Unit, delayMillis: Int): JsAny =
     js("setTimeout(task, delayMillis)")
 
-internal actual fun jsSetInterval(task: () -> Unit, delayMillis: Int): Any =
+@Suppress("UnusedPrivateMember")
+private fun jsSetIntervalInternal(task: () -> Unit, delayMillis: Int): JsAny =
     js("setInterval(task, delayMillis)")
 
-internal actual fun jsClearTimeout(id: Any) {
+@Suppress("UnusedPrivateMember")
+private fun jsClearTimeoutInternal(id: JsAny) {
     js("clearTimeout(id)")
 }
 
-internal actual fun jsClearInterval(id: Any) {
+@Suppress("UnusedPrivateMember")
+private fun jsClearIntervalInternal(id: JsAny) {
     js("clearInterval(id)")
 }