diff --git a/build.gradle.kts b/build.gradle.kts
index 2b0c22bc91a..1f994f05012 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -449,7 +449,7 @@ tasks {
     "check" { dependsOn("test") }
 }
 
-the<IdeaModel>().apply {
+configure<IdeaModel> {
     module {
         excludeDirs = files(
                 project.buildDir,
diff --git a/libraries/stdlib/js/build.gradle b/libraries/stdlib/js/build.gradle
index 7f6d878086e..7e92b77f7b2 100644
--- a/libraries/stdlib/js/build.gradle
+++ b/libraries/stdlib/js/build.gradle
@@ -5,6 +5,7 @@ plugins {
 description = 'Kotlin Standard Library for JS'
 
 apply plugin: 'kotlin2js'
+apply plugin: 'idea'
 
 configurePublishing(project)
 
@@ -60,6 +61,12 @@ dependencies {
     merger project(":tools:kotlin-stdlib-js-merger")
 }
 
+idea {
+    module {
+        excludeDirs = files('node_modules').toSet()
+    }
+}
+
 createPreprocessorTask(project, "Main", "${projectDir}/../src/kotlin", commonSrcDir)
 createPreprocessorTask(project, "Test", "${projectDir}/../test", commonTestSrcDir)