diff --git a/python/educational/interactive-learning/src/com/jetbrains/edu/learning/courseGeneration/StudyGenerator.java b/python/educational/interactive-learning/src/com/jetbrains/edu/learning/courseGeneration/StudyGenerator.java
index e77229f40c23..89e521941075 100644
--- a/python/educational/interactive-learning/src/com/jetbrains/edu/learning/courseGeneration/StudyGenerator.java
+++ b/python/educational/interactive-learning/src/com/jetbrains/edu/learning/courseGeneration/StudyGenerator.java
@@ -69,7 +69,7 @@ public class StudyGenerator {
           File resourceFile = new File(newResourceRoot, fileName);
           File fileInProject = new File(taskDir.getCanonicalPath(), fileName);
           FileUtil.copy(resourceFile, fileInProject);
-          StudyTaskManager.getInstance(project).addInvisibleFiles(fileInProject.getPath());
+          StudyTaskManager.getInstance(project).addInvisibleFiles(FileUtil.toSystemIndependentName(fileInProject.getPath()));
         }
       }
     }