diff --git a/CHANGES.rst b/CHANGES.rst
index 2e00ac80..596ad6a0 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,21 @@ Changelog
 =========
 
 
+0.20.0 (not yet released)
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Bug fixes and minor changes
+---------------------------
+
++ `#90`_, `#91`_, `#95`_: :attr:`icat.query.Query.join_specs` was not
+  taken into account in :meth:`icat.query.Query.copy` and
+  :meth:`icat.query.Query.__repr__`.
+
+.. _#90: https://github.com/icatproject/python-icat/issues/90
+.. _#91: https://github.com/icatproject/python-icat/issues/91
+.. _#95: https://github.com/icatproject/python-icat/pull/95
+
+
 0.19.0 (2021-07-20)
 ~~~~~~~~~~~~~~~~~~~
 
diff --git a/icat/query.py b/icat/query.py
index e8e84eb0..65365259 100644
--- a/icat/query.py
+++ b/icat/query.py
@@ -443,12 +443,13 @@ def __repr__(self):
         """Return a formal representation of the query.
         """
         return ("%s(%s, %s, attributes=%s, aggregate=%s, order=%s, "
-                "conditions=%s, includes=%s, limit=%s)"
+                "conditions=%s, includes=%s, limit=%s, join_specs=%s)"
                 % (self.__class__.__name__,
                    repr(self.client), repr(self.entity.BeanName),
                    repr(self.attributes), repr(self.aggregate),
                    repr(self.order), repr(self.conditions),
-                   repr(self.includes), repr(self.limit)))
+                   repr(self.includes), repr(self.limit),
+                   repr(self.join_specs)))
 
     def __str__(self):
         """Return a string representation of the query.
@@ -538,6 +539,7 @@ def copy(self):
         q.conditions = self.conditions.copy()
         q.includes = self.includes.copy()
         q.limit = self.limit
+        q.join_specs = self.join_specs.copy()
         return q
 
     def setAttribute(self, attribute):
diff --git a/tests/test_06_query.py b/tests/test_06_query.py
index f41d0292..217ed7b4 100644
--- a/tests/test_06_query.py
+++ b/tests/test_06_query.py
@@ -763,3 +763,32 @@ def test_query_aggregate_misc(client, attribute, aggregate, expected):
     assert len(res) == 1
     assert res[0] == expected
 
+@pytest.mark.parametrize(("entity", "kwargs"), [
+    ("Datafile", dict(attributes="name", order=True)),
+    ("InvestigationUser",
+     dict(attributes=("investigation.name", "role"),
+          conditions={"investigation.name": "= '08100122-EF'"},
+          aggregate="DISTINCT")),
+    ("Datafile", dict(order=[("name", "ASC")])),
+    ("Datafile", dict(conditions={
+        "name": "= 'e208945.nxs'",
+        "dataset.name": "= 'e208945'",
+        "dataset.investigation.name": "= '12100409-ST'",
+    })),
+    ("Instrument", dict(order=["name"],
+                        includes={"facility", "instrumentScientists.user"})),
+    ("Rule", dict(order=['grouping', 'what', 'id'],
+                  conditions={"grouping":"IS NOT NULL"},
+                  limit=(0,10))),
+    ("Rule", dict(order=['grouping', 'what', 'id'],
+                  join_specs={"grouping": "LEFT OUTER JOIN"})),
+])
+def test_query_copy(client, entity, kwargs):
+    """Test the Query.copy() method.
+
+    Very basic test: verify that Query.copy() yields an equivalent
+    query for various Query() constructor argument sets.
+    """
+    query = Query(client, entity, **kwargs)
+    clone = query.copy()
+    assert str(clone) == str(query)