diff --git a/plugins/kotlin/jvm/src/org/jetbrains/kotlin/idea/inspections/JavaOutsideModuleDetector.kt b/plugins/kotlin/jvm/src/org/jetbrains/kotlin/idea/inspections/JavaOutsideModuleDetector.kt
index 664daed70ce9..8ab6059756ba 100644
--- a/plugins/kotlin/jvm/src/org/jetbrains/kotlin/idea/inspections/JavaOutsideModuleDetector.kt
+++ b/plugins/kotlin/jvm/src/org/jetbrains/kotlin/idea/inspections/JavaOutsideModuleDetector.kt
@@ -6,13 +6,15 @@ import com.intellij.icons.AllIcons
 import com.intellij.ide.highlighter.JavaFileType
 import com.intellij.openapi.fileEditor.FileEditor
 import com.intellij.openapi.fileTypes.FileTypeRegistry
+import com.intellij.openapi.module.ModuleUtilCore
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.roots.ProjectRootManager
 import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.ui.EditorNotificationPanel
 import com.intellij.ui.EditorNotificationProvider
-import org.jetbrains.jps.model.java.JavaModuleSourceRootTypes
 import org.jetbrains.kotlin.idea.KotlinJvmBundle
+import org.jetbrains.kotlin.idea.base.util.KOTLIN_SOURCE_ROOT_TYPES
+import org.jetbrains.kotlin.idea.base.util.isGradleModule
 import java.util.function.Function
 import javax.swing.JComponent
 
@@ -23,8 +25,10 @@ class JavaOutsideModuleDetector : EditorNotificationProvider {
             return null
         }
 
+        if (ModuleUtilCore.findModuleForFile(file, project)?.isGradleModule != true) return null
+
         val fileIndex = ProjectRootManager.getInstance(project).getFileIndex()
-        if (!fileIndex.isInSourceContent(file) || fileIndex.isUnderSourceRootOfType(file, JavaModuleSourceRootTypes.SOURCES)) return null
+        if (!fileIndex.isUnderSourceRootOfType(file, KOTLIN_SOURCE_ROOT_TYPES)) return null
 
         return Function {
             EditorNotificationPanel(it, EditorNotificationPanel.Status.Warning).apply {