diff --git a/kotlin-native/backend.native/tests/samples/echoServer/src/echoServerMain/kotlin/EchoServer.kt b/kotlin-native/backend.native/tests/samples/echoServer/src/echoServerMain/kotlin/EchoServer.kt
index 748c0e3eaf2..c69e690b8ce 100644
--- a/kotlin-native/backend.native/tests/samples/echoServer/src/echoServerMain/kotlin/EchoServer.kt
+++ b/kotlin-native/backend.native/tests/samples/echoServer/src/echoServerMain/kotlin/EchoServer.kt
@@ -30,6 +30,7 @@ fun main(args: Array<String>) {
 
         with(serverAddr) {
             memset(this.ptr, 0, sockaddr_in.size.convert())
+            @OptIn(UnsafeNumber::class)
             sin_family = AF_INET.convert()
             sin_port = posix_htons(port).convert()
         }
diff --git a/kotlin-native/backend.native/tests/samples/gradle.properties b/kotlin-native/backend.native/tests/samples/gradle.properties
index 9797a2a5ffc..d4e6b3b61ef 100644
--- a/kotlin-native/backend.native/tests/samples/gradle.properties
+++ b/kotlin-native/backend.native/tests/samples/gradle.properties
@@ -16,6 +16,3 @@ kotlin.native.home=../../dist
 
 # Increase memory for in-process compiler execution.
 org.gradle.jvmargs=-Xmx3g
-
-# Disable HMPP with metadata until KT-50547 is not fixed
-kotlin.mpp.hierarchicalStructureSupport=false
\ No newline at end of file