diff --git a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/testing/karma/KotlinKarma.kt b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/testing/karma/KotlinKarma.kt
index b2e19b0effd..a5528c36a27 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/testing/karma/KotlinKarma.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/testing/karma/KotlinKarma.kt
@@ -603,16 +603,18 @@ internal fun createLoadWasm(npmProjectDir: File, file: File): File {
     val static = npmProjectDir.resolve("static").also {
         it.mkdirs()
     }
-    val loadJs = static.resolve("load.js")
+    val loadJs = static.resolve("load.mjs")
     loadJs.printWriter().use { writer ->
         val relativePath = file.relativeTo(static).invariantSeparatorsPath
         writer.println(
             """
-                import exports from "$relativePath";
-
-                exports.startUnitTests();
-
-                window.__karma__.loaded();
+                import( /* webpackMode: "eager" */ "$relativePath")
+                    .then((exports) => {
+                        exports.default.startUnitTests();
+                        window.__karma__.loaded();
+                    }, (reason) => {
+                        window.__karma__.error("Problem with loading", void 0, void 0, void 0, reason)
+                    })
             """.trimIndent()
         )
     }
diff --git a/libraries/tools/kotlin-gradle-plugin/src/test/kotlin/org/jetbrains/kotlin/gradle/targets/js/testing/karma/KotlinKarmaTest.kt b/libraries/tools/kotlin-gradle-plugin/src/test/kotlin/org/jetbrains/kotlin/gradle/targets/js/testing/karma/KotlinKarmaTest.kt
index 79e900012b7..1e2f97ea716 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/test/kotlin/org/jetbrains/kotlin/gradle/targets/js/testing/karma/KotlinKarmaTest.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/test/kotlin/org/jetbrains/kotlin/gradle/targets/js/testing/karma/KotlinKarmaTest.kt
@@ -18,17 +18,19 @@ class KotlinKarmaTest {
         val loadWasm = createLoadWasm(npmProjectDir.toFile(), executableFile.toFile())
 
         assertEquals(
-            "static/load.js",
+            "static/load.mjs",
             loadWasm.relativeTo(npmProjectDir.toFile()).invariantSeparatorsPath
         )
 
         assertEquals(
             """
-            import exports from "../kotlin/main.mjs";
-            
-            exports.startUnitTests();
-            
-            window.__karma__.loaded();
+            import( /* webpackMode: "eager" */ "../kotlin/main.mjs")
+                .then((exports) => {
+                    exports.default.startUnitTests();
+                    window.__karma__.loaded();
+                }, (reason) => {
+                    window.__karma__.error("Problem with loading", void 0, void 0, void 0, reason)
+                })
             """.trimIndent(),
             loadWasm.readText().trimIndent()
         )