diff --git a/compiler/tests/org/jetbrains/kotlin/repl/AbstractReplInterpreterTest.kt b/compiler/tests/org/jetbrains/kotlin/repl/AbstractReplInterpreterTest.kt
index 4b95047c9d6..b8bad9df60c 100644
--- a/compiler/tests/org/jetbrains/kotlin/repl/AbstractReplInterpreterTest.kt
+++ b/compiler/tests/org/jetbrains/kotlin/repl/AbstractReplInterpreterTest.kt
@@ -92,7 +92,7 @@ public abstract class AbstractReplInterpreterTest : UsefulTestCase() {
             }
 
             val actual = when (lineResult.getType()) {
-                ReplInterpreter.LineResultType.SUCCESS -> lineResult.getValue()?.toString() ?: ""
+                ReplInterpreter.LineResultType.SUCCESS -> if (!lineResult.isUnit) "${lineResult.value}" else ""
                 ReplInterpreter.LineResultType.RUNTIME_ERROR,
                 ReplInterpreter.LineResultType.COMPILE_ERROR -> lineResult.getErrorText()
                 ReplInterpreter.LineResultType.INCOMPLETE -> INCOMPLETE_LINE_MESSAGE