diff --git a/python/educational/src/com/jetbrains/edu/courseFormat/Task.java b/python/educational/src/com/jetbrains/edu/courseFormat/Task.java
index c80d85316d55..b398feb1e865 100644
--- a/python/educational/src/com/jetbrains/edu/courseFormat/Task.java
+++ b/python/educational/src/com/jetbrains/edu/courseFormat/Task.java
@@ -1,6 +1,7 @@
 package com.jetbrains.edu.courseFormat;
 
 import com.google.gson.annotations.Expose;
+import com.google.gson.annotations.SerializedName;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.util.xmlb.annotations.Transient;
@@ -18,6 +19,8 @@ public class Task {
   @Expose
   private String name;
   private int myIndex;
+  @Expose
+  @SerializedName("task_files")
   public Map<String, TaskFile> taskFiles = new HashMap<String, TaskFile>();
 
   private String text;
diff --git a/python/educational/src/com/jetbrains/edu/courseFormat/TaskFile.java b/python/educational/src/com/jetbrains/edu/courseFormat/TaskFile.java
index 36addc3ece22..9ad9d96ab78e 100644
--- a/python/educational/src/com/jetbrains/edu/courseFormat/TaskFile.java
+++ b/python/educational/src/com/jetbrains/edu/courseFormat/TaskFile.java
@@ -1,5 +1,6 @@
 package com.jetbrains.edu.courseFormat;
 
+import com.google.gson.annotations.Expose;
 import com.google.gson.annotations.SerializedName;
 import com.intellij.openapi.editor.Document;
 import com.intellij.openapi.editor.LogicalPosition;
@@ -17,11 +18,11 @@ import java.util.List;
  */
 
 public class TaskFile {
-  @SerializedName("placeholders")
+  @SerializedName("task_windows")
+  @Expose
   private List<AnswerPlaceholder> myAnswerPlaceholders = new ArrayList<AnswerPlaceholder>();
   private int myIndex = -1;
 
-
   public String name;
   public String text;
   @Transient private Task myTask;