diff --git a/python/src/com/jetbrains/python/psi/PyUtil.java b/python/src/com/jetbrains/python/psi/PyUtil.java
index 14df8cb887e6..4184f8cef9c8 100644
--- a/python/src/com/jetbrains/python/psi/PyUtil.java
+++ b/python/src/com/jetbrains/python/psi/PyUtil.java
@@ -54,7 +54,7 @@ public class PyUtil {
         if (doc == null) {
             return;
         }
-        if (!FileDocumentManager.getInstance().fileForDocumentCheckedOutSuccessfully(doc, element.getProject())) {
+        if (!FileDocumentManager.getInstance().requestWriting(doc, element.getProject())) {
             throw new IllegalStateException();
         }
     }