diff --git a/compiler/testData/diagnostics/wasmTests/jsInterop/jsFun.kt b/compiler/testData/diagnostics/wasmTests/jsInterop/jsFun.kt
index 7ae2cad609e..2314d7e35f6 100644
--- a/compiler/testData/diagnostics/wasmTests/jsInterop/jsFun.kt
+++ b/compiler/testData/diagnostics/wasmTests/jsInterop/jsFun.kt
@@ -1,3 +1,5 @@
+@file:Suppress("DEPRECATION")
+
 @JsFun("() => {}")
 external fun topLevelExternalFun(): Unit
 
diff --git a/libraries/stdlib/wasm/src/kotlin/JsInterop.kt b/libraries/stdlib/wasm/src/kotlin/JsInterop.kt
index c2660e20681..4ea659c08cf 100644
--- a/libraries/stdlib/wasm/src/kotlin/JsInterop.kt
+++ b/libraries/stdlib/wasm/src/kotlin/JsInterop.kt
@@ -17,6 +17,7 @@ package kotlin
  *
  * This is a temporary annotation because K/Wasm <-> JS interop is not designed yet.
  */
+@Deprecated("@JsFun annotation is deprecated, use `fun f() = js(\"code\")` instead.")
 @Target(AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER, AnnotationTarget.PROPERTY_SETTER)
 @Retention(AnnotationRetention.BINARY)
 public annotation class JsFun(val code: String)
\ No newline at end of file