diff --git a/python/src/com/jetbrains/numpy/codeInsight/NumpyDocStringTypeProvider.java b/python/src/com/jetbrains/numpy/codeInsight/NumpyDocStringTypeProvider.java
index b9d995963bae..1804e7ebbe11 100644
--- a/python/src/com/jetbrains/numpy/codeInsight/NumpyDocStringTypeProvider.java
+++ b/python/src/com/jetbrains/numpy/codeInsight/NumpyDocStringTypeProvider.java
@@ -91,8 +91,7 @@ public class NumpyDocStringTypeProvider extends PyTypeProviderBase {
         final PyPsiFacade facade = getPsiFacade(function);
         switch (returns.size()) {
           case 0:
-            // Function returns nothing
-            return facade.parseTypeAnnotation("None", function);
+            return null;
           case 1:
             // Function returns single value
             final String typeName = returns.get(0).getType();