diff --git a/src/codegen/schema.js b/src/codegen/schema.js
index 9a0e0ead6..deb6b8fe3 100644
--- a/src/codegen/schema.js
+++ b/src/codegen/schema.js
@@ -236,7 +236,7 @@ Suggestion: add an '!' to the member type of the List, change from '${fieldValue
       : gqlType.getIn(['name', 'value'])
   }
 
-  _typeFromGraphQl(gqlType, nullable = true) {
+  _typeFromGraphQl(gqlType, nullable = false) {
     if (gqlType.get('kind') === 'NonNullType') {
       return this._typeFromGraphQl(gqlType.get('type'), false)
     } else if (gqlType.get('kind') === 'ListType') {