diff --git a/inspire_schemas/builders.py b/inspire_schemas/builders.py
index <HASH>..<HASH> 100644
--- a/inspire_schemas/builders.py
+++ b/inspire_schemas/builders.py
@@ -645,7 +645,8 @@ class LiteratureBuilder(object):
         material=None,
         holder=None,
         statement=None,
-        url=None
+        url=None,
+        year=None
     ):
         """Add Copyright.
 
@@ -656,6 +657,8 @@ class LiteratureBuilder(object):
         :type statement: string
 
         :type url: string
+
+        :type year: int
         """
         copyright = {}
         for key in ('holder', 'statement', 'url'):
@@ -665,6 +668,9 @@ class LiteratureBuilder(object):
         if material is not None:
             copyright['material'] = material.lower()
 
+        if year is not None:
+            copyright['year'] = int(year)
+
         self._append_to('copyright', copyright)
 
     @filter_empty_parameters
builder: add `copyright.year` field to the builder

* Adds missing `copyright.year` field to the `builders.add_copyright`.

Closes #<I>