diff --git a/libraries/kotlin.test/common/src/main/kotlin/kotlin/test/DefaultAsserter.kt b/libraries/kotlin.test/common/src/main/kotlin/kotlin/test/DefaultAsserter.kt
index a72c8d9d365..b5cedf80a61 100644
--- a/libraries/kotlin.test/common/src/main/kotlin/kotlin/test/DefaultAsserter.kt
+++ b/libraries/kotlin.test/common/src/main/kotlin/kotlin/test/DefaultAsserter.kt
@@ -11,7 +11,4 @@ class DefaultAsserter() : Asserter {
         else
             throw AssertionError(message)
     }
-}
-
-header fun AssertionError(message: String): Throwable
-header fun AssertionError(): Throwable
+}
\ No newline at end of file
diff --git a/libraries/kotlin.test/js/src/main/kotlin/AssertionError.kt b/libraries/kotlin.test/js/src/main/kotlin/AssertionError.kt
deleted file mode 100644
index a46535636b0..00000000000
--- a/libraries/kotlin.test/js/src/main/kotlin/AssertionError.kt
+++ /dev/null
@@ -1,4 +0,0 @@
-package kotlin.test
-
-impl fun AssertionError(message: String): Throwable = kotlin.AssertionError(message)
-impl fun AssertionError(): Throwable = kotlin.AssertionError()
diff --git a/libraries/kotlin.test/jvm/src/main/kotlin/AssertionError.kt b/libraries/kotlin.test/jvm/src/main/kotlin/AssertionError.kt
deleted file mode 100644
index cfe76d065c9..00000000000
--- a/libraries/kotlin.test/jvm/src/main/kotlin/AssertionError.kt
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright 2010-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package kotlin.test
-
-impl fun AssertionError(message: String): Throwable = java.lang.AssertionError(message)
-impl fun AssertionError(): Throwable = java.lang.AssertionError()
-
diff --git a/libraries/stdlib/common/src/kotlin/KotlinH.kt b/libraries/stdlib/common/src/kotlin/KotlinH.kt
index 2cb9af57e42..1674d90ffdb 100644
--- a/libraries/stdlib/common/src/kotlin/KotlinH.kt
+++ b/libraries/stdlib/common/src/kotlin/KotlinH.kt
@@ -58,6 +58,12 @@ open header class UnsupportedOperationException : RuntimeException {
     constructor(message: String)
 }
 
+// TODO: Provide typealias impl in stdlib-jvm
+open header class AssertionError : Error {
+    constructor()
+    constructor(message: String)
+}
+
 
 header interface Comparator<T> {
     fun compare(a: T, b: T): Int