diff --git a/libraries/kotlin.test/testng/src/main/kotlin/TestNGSupport.kt b/libraries/kotlin.test/testng/src/main/kotlin/TestNGSupport.kt
index 6bb24db5f8e..bee2ace6f3b 100644
--- a/libraries/kotlin.test/testng/src/main/kotlin/TestNGSupport.kt
+++ b/libraries/kotlin.test/testng/src/main/kotlin/TestNGSupport.kt
@@ -29,19 +29,19 @@ class TestNGContributor : AsserterContributor {
  */
 object TestNGAsserter : Asserter {
     override fun assertEquals(message: String?, expected: Any?, actual: Any?) {
-        Assert.assertEquals(expected, actual, message)
+        Assert.assertEquals(actual, expected, message)
     }
 
     override fun assertNotEquals(message: String?, illegal: Any?, actual: Any?) {
-        Assert.assertNotEquals(illegal, actual, message)
+        Assert.assertNotEquals(actual, illegal, message)
     }
 
     override fun assertSame(message: String?, expected: Any?, actual: Any?) {
-        Assert.assertSame(expected, actual, message)
+        Assert.assertSame(actual, expected, message)
     }
 
     override fun assertNotSame(message: String?, illegal: Any?, actual: Any?) {
-        Assert.assertNotSame(illegal, actual, message)
+        Assert.assertNotSame(actual, illegal, message)
     }
 
     override fun assertNotNull(message: String?, actual: Any?) {