diff --git a/analysis/analysis-api-standalone/src/org/jetbrains/kotlin/analysis/project/structure/impl/KtModuleUtils.kt b/analysis/analysis-api-standalone/src/org/jetbrains/kotlin/analysis/project/structure/impl/KtModuleUtils.kt
index bb2f4b441fe..7a5ab4706f0 100644
--- a/analysis/analysis-api-standalone/src/org/jetbrains/kotlin/analysis/project/structure/impl/KtModuleUtils.kt
+++ b/analysis/analysis-api-standalone/src/org/jetbrains/kotlin/analysis/project/structure/impl/KtModuleUtils.kt
@@ -28,6 +28,7 @@ import org.jetbrains.kotlin.config.CompilerConfiguration
 import org.jetbrains.kotlin.config.JVMConfigurationKeys
 import org.jetbrains.kotlin.idea.KotlinFileType
 import org.jetbrains.kotlin.js.resolve.JsPlatformAnalyzerServices
+import org.jetbrains.kotlin.parsing.KotlinParserDefinition
 import org.jetbrains.kotlin.wasm.resolve.WasmPlatformAnalyzerServices
 import org.jetbrains.kotlin.platform.TargetPlatform
 import org.jetbrains.kotlin.platform.isCommon
@@ -86,7 +87,7 @@ internal fun getSourceFilePaths(
  * Collect source file path from the given [root] store them in [result].
  *
  * E.g., for `project/app/src` as a [root], this will walk the file tree and
- * collect all `.kt` and `.java` files under that folder.
+ * collect all `.kt`, `.kts`, and `.java` files under that folder.
  *
  * Note that this util gracefully skips [IOException] during file tree traversal.
  */
@@ -110,7 +111,10 @@ private fun collectSourceFilePaths(
                 if (!Files.isRegularFile(file) || !Files.isReadable(file))
                     return FileVisitResult.CONTINUE
                 val ext = getFileExtension(file.fileName.toString())
-                if (ext == KotlinFileType.EXTENSION || ext == JavaFileType.DEFAULT_EXTENSION) {
+                if (ext == KotlinFileType.EXTENSION ||
+                    ext == KotlinParserDefinition.STD_SCRIPT_SUFFIX ||
+                    ext == JavaFileType.DEFAULT_EXTENSION
+                ) {
                     result.add(file.toString())
                 }
                 return FileVisitResult.CONTINUE