diff --git a/serializable/helpers.py b/serializable/helpers.py
index 289185c..2d0939a 100644
--- a/serializable/helpers.py
+++ b/serializable/helpers.py
@@ -228,8 +228,8 @@ def list_to_serializable_repr(x):
 
 def to_dict(obj):
     """
-    If value wasn't isn't a primitive scalar or collection then it needs to
-    either implement to_dict (instances of Serializable) or has member
+    If value isn't a primitive scalar or collection then it needs to
+    either implement to_dict (instances of Serializable) or have member
     data matching each required arg of __init__.
     """
     if isinstance(obj, dict):
diff --git a/serializable/serializable.py b/serializable/serializable.py
index e961e21..385d856 100644
--- a/serializable/serializable.py
+++ b/serializable/serializable.py
@@ -24,12 +24,10 @@
 
 class Serializable:
     """
-    Base class for all PyEnsembl objects which provides default
+    Base class for user-defined objects which provides default
     methods such as to_json, from_json, __reduce__, and from_dict
 
-    Relies on the following condition:
-         (1) a user-defined to_dict method
-         (2) the keys of to_dict() must match the arguments to __init__
+    Relies on the keys of to_dict() matching the arguments to __init__.
     """
 
     def __str__(self):
@@ -78,7 +76,7 @@ def _update_kwargs(cls, kwargs):
         Rename any old keyword arguments to preserve backwards compatibility
         """
         # check every class in the inheritance chain for its own
-        # definition of _KEYWORD_ALIASES
+        # definition of _SERIALIZABLE_KEYWORD_ALIASES
         for klass in cls.mro():
             keyword_rename_dict = getattr(klass, "_SERIALIZABLE_KEYWORD_ALIASES", {})
             for old_name, new_name in keyword_rename_dict.items():
@@ -99,7 +97,7 @@ def from_dict(cls, state_dict):
 
     def to_json(self):
         """
-        Returns a string containing a JSON representation of this Genome.
+        Returns a string containing a JSON representation of this object.
         """
         return to_json(self)
 
@@ -112,8 +110,7 @@ def from_json(cls, json_string):
 
     def write_json_file(self, path):
         """
-        Serialize this VariantCollection to a JSON representation and write it
-        out to a text file.
+        Serialize this object to JSON and write it to the text file at `path`.
         """
         with open(path, "w") as f:
             f.write(self.to_json())
@@ -121,7 +118,7 @@ def write_json_file(self, path):
     @classmethod
     def read_json_file(cls, path):
         """
-        Construct a VariantCollection from a JSON file.
+        Construct an instance of this class from the JSON file at `path`.
         """
         with open(path) as f:
             json_string = f.read()
diff --git a/serializable/version.py b/serializable/version.py
index 4b8e122..e52182c 100644
--- a/serializable/version.py
+++ b/serializable/version.py
@@ -1,4 +1,4 @@
-__version__ = "1.1.1"
+__version__ = "1.1.2"
 
 
 def print_version():
diff --git a/tests/test_object.py b/tests/test_object.py
index 3a73b0a..93da2da 100644
--- a/tests/test_object.py
+++ b/tests/test_object.py
@@ -44,3 +44,9 @@ def test_object_to_json():
 
 def test_object_pickle():
     eq_(instance, pickle.loads(pickle.dumps(instance)))
+
+
+def test_object_json_file(tmp_path):
+    path = tmp_path / "instance.json"
+    instance.write_json_file(path)
+    eq_(instance, A.read_json_file(path))