diff --git a/compiler/incremental-compilation-impl/test/org/jetbrains/kotlin/incremental/AbstractIncrementalJsCompilerRunnerTest.kt b/compiler/incremental-compilation-impl/test/org/jetbrains/kotlin/incremental/AbstractIncrementalJsCompilerRunnerTest.kt
index 047a9e306c1..d322832def9 100644
--- a/compiler/incremental-compilation-impl/test/org/jetbrains/kotlin/incremental/AbstractIncrementalJsCompilerRunnerTest.kt
+++ b/compiler/incremental-compilation-impl/test/org/jetbrains/kotlin/incremental/AbstractIncrementalJsCompilerRunnerTest.kt
@@ -37,7 +37,7 @@ abstract class AbstractIncrementalJsCompilerRunnerTest : AbstractIncrementalComp
     override fun createCompilerArguments(destinationDir: File, testDir: File): K2JSCompilerArguments =
             K2JSCompilerArguments().apply {
                 outputFile = File(destinationDir, "${testDir.name}.js").path
-                sourceMap = false
+                sourceMap = true
                 metaInfo = true
             }
 }
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