diff --git a/idea/src/org/jetbrains/jet/plugin/libraries/JetContentBasedFileSubstitutor.java b/idea/src/org/jetbrains/jet/plugin/libraries/JetContentBasedFileSubstitutor.java
index 80a14eff7b2..e8738c8e574 100644
--- a/idea/src/org/jetbrains/jet/plugin/libraries/JetContentBasedFileSubstitutor.java
+++ b/idea/src/org/jetbrains/jet/plugin/libraries/JetContentBasedFileSubstitutor.java
@@ -44,7 +44,9 @@ public class JetContentBasedFileSubstitutor implements ContentBasedClassFileProc
             DumbService.getInstance(project).runWhenSmart(new Runnable() {
                 @Override
                 public void run() {
-                    FileDocumentManager.getInstance().reloadFiles(file);
+                    FileDocumentManager docManager = FileDocumentManager.getInstance();
+                    docManager.getDocument(file); // force getting document because it can be collected
+                    docManager.reloadFiles(file);
                 }
             });
             return false;