diff --git a/ktor-server/ktor-server-cio/jsAndWasmShared/src/io/ktor/server/cio/backend/SocketAddressUtils.jsAndWasmShared.kt b/ktor-server/ktor-server-cio/nonJvm/src/io/ktor/server/cio/backend/SocketAddressUtils.nonJvm.kt
similarity index 65%
rename from ktor-server/ktor-server-cio/jsAndWasmShared/src/io/ktor/server/cio/backend/SocketAddressUtils.jsAndWasmShared.kt
rename to ktor-server/ktor-server-cio/nonJvm/src/io/ktor/server/cio/backend/SocketAddressUtils.nonJvm.kt
index 460a9d176e8..0aea2e82efd 100644
--- a/ktor-server/ktor-server-cio/jsAndWasmShared/src/io/ktor/server/cio/backend/SocketAddressUtils.jsAndWasmShared.kt
+++ b/ktor-server/ktor-server-cio/nonJvm/src/io/ktor/server/cio/backend/SocketAddressUtils.nonJvm.kt
@@ -8,6 +8,6 @@ import io.ktor.network.sockets.*
 import io.ktor.util.network.*
 
 internal actual fun SocketAddress.toNetworkAddress(): NetworkAddress {
-    val inetAddress = this as? InetSocketAddress ?: error("Expected inet socket address")
-    return NetworkAddress(inetAddress.hostname, inetAddress.port)
+    check(this is InetSocketAddress) { "Expected inet socket address" }
+    return NetworkAddress(hostname, port)
 }
diff --git a/ktor-server/ktor-server-cio/posix/src/io/ktor/server/cio/backend/SocketAddressUtilsNative.kt b/ktor-server/ktor-server-cio/posix/src/io/ktor/server/cio/backend/SocketAddressUtilsNative.kt
deleted file mode 100644
index 460a9d176e8..00000000000
--- a/ktor-server/ktor-server-cio/posix/src/io/ktor/server/cio/backend/SocketAddressUtilsNative.kt
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- * Copyright 2014-2022 JetBrains s.r.o and contributors. Use of this source code is governed by the Apache 2.0 license.
- */
-
-package io.ktor.server.cio.backend
-
-import io.ktor.network.sockets.*
-import io.ktor.util.network.*
-
-internal actual fun SocketAddress.toNetworkAddress(): NetworkAddress {
-    val inetAddress = this as? InetSocketAddress ?: error("Expected inet socket address")
-    return NetworkAddress(inetAddress.hostname, inetAddress.port)
-}