diff --git a/graphql_schema.json b/graphql_schema.json
index 0c2c72f1..8a18024d 100644
--- a/graphql_schema.json
+++ b/graphql_schema.json
@@ -590,6 +590,30 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "admins",
+              "description": null,
+              "args": [],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "LIST",
+                  "name": null,
+                  "ofType": {
+                    "kind": "NON_NULL",
+                    "name": null,
+                    "ofType": {
+                      "kind": "OBJECT",
+                      "name": "AdminUser",
+                      "ofType": null
+                    }
+                  }
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "post",
               "description": null,
@@ -3829,4 +3853,4 @@
       ]
     }
   }
-}
\ No newline at end of file
+}
diff --git a/tests_bucklescript/operations/interfaceFragmentOnObjectWithFieldDuplication.re b/tests_bucklescript/operations/interfaceFragmentOnObjectWithFieldDuplication.re
new file mode 100644
index 00000000..97a28182
--- /dev/null
+++ b/tests_bucklescript/operations/interfaceFragmentOnObjectWithFieldDuplication.re
@@ -0,0 +1,25 @@
+module GraphQL_PPX = {
+  // mock
+  let deepMerge = (json1, _) => {
+    json1;
+  };
+};
+
+module UserData = [%graphql
+  {|
+    fragment UserData on User {
+      id
+    }
+  |};
+];
+
+module MyQuery = [%graphql
+  {|
+    query {
+      admins {
+        id
+        ...UserData
+      }
+    }
+  |}
+];