diff --git a/src/test/scala/com/exasol/cloudetl/scriptclasses/FilesDataImporterTest.scala b/src/test/scala/com/exasol/cloudetl/scriptclasses/FilesDataImporterTest.scala
index ae6b5bf7..f36efaf8 100644
--- a/src/test/scala/com/exasol/cloudetl/scriptclasses/FilesDataImporterTest.scala
+++ b/src/test/scala/com/exasol/cloudetl/scriptclasses/FilesDataImporterTest.scala
@@ -1,5 +1,8 @@
 package com.exasol.cloudetl.scriptclasses
 
+import java.nio.file.Files
+import java.nio.file.Paths
+
 import scala.io.Source
 
 import com.exasol.ExaIterator
@@ -142,6 +145,7 @@ class FilesDataImporterTest extends StorageTest with Matchers {
   }
 
   test("collectFiles with 40k real file names") {
+    assume(Files.exists(Paths.get("files.txt")))
     val files = Source.fromFile("files.txt").getLines().map(fileName => iteratorRow(fileName, 0L, 1L)).toSeq
     assert(files.size == 40000)
     val result = FilesDataImporter.collectFiles(ExaIteratorMock.fromSeq(files))