diff --git a/sacred/observers/file_storage.py b/sacred/observers/file_storage.py
index fb80b804..febacbf3 100644
--- a/sacred/observers/file_storage.py
+++ b/sacred/observers/file_storage.py
@@ -253,9 +253,6 @@ def __eq__(self, other):
             return self.basedir == other.basedir
         return False
 
-    def __ne__(self, other):
-        return not self.__eq__(other)
-
 
 class FileStorageOption(CommandLineOption):
     """Add a file-storage observer to the experiment."""
diff --git a/sacred/observers/mongo.py b/sacred/observers/mongo.py
index e369ec81..46344e00 100644
--- a/sacred/observers/mongo.py
+++ b/sacred/observers/mongo.py
@@ -348,9 +348,6 @@ def __eq__(self, other):
             return self.runs == other.runs
         return False
 
-    def __ne__(self, other):
-        return not self.__eq__(other)
-
 
 class MongoDbOption(CommandLineOption):
     """Add a MongoDB Observer to the experiment."""
diff --git a/sacred/observers/queue.py b/sacred/observers/queue.py
index 6c6b7a99..a5acef7a 100644
--- a/sacred/observers/queue.py
+++ b/sacred/observers/queue.py
@@ -108,6 +108,3 @@ def __getattr__(self, item):
 
     def __eq__(self, other):
         return self._covered_observer == other
-
-    def __ne__(self, other):
-        return not self._covered_observer == other
diff --git a/sacred/observers/sql.py b/sacred/observers/sql.py
index 938c341f..1fba4131 100644
--- a/sacred/observers/sql.py
+++ b/sacred/observers/sql.py
@@ -116,9 +116,6 @@ def __eq__(self, other):
                     self.session == other.session)
         return False
 
-    def __ne__(self, other):
-        return not self.__eq__(other)
-
 
 # ######################## Commandline Option ############################### #
 
diff --git a/sacred/observers/tinydb_hashfs.py b/sacred/observers/tinydb_hashfs.py
index 8736ea32..5f4e2b19 100644
--- a/sacred/observers/tinydb_hashfs.py
+++ b/sacred/observers/tinydb_hashfs.py
@@ -208,9 +208,6 @@ def __eq__(self, other):
             return self.runs.all() == other.runs.all()
         return False
 
-    def __ne__(self, other):
-        return not self.__eq__(other)
-
 
 class TinyDbOption(CommandLineOption):
     """Add a TinyDB Observer to the experiment."""
diff --git a/tests/test_observers/test_file_storage_observer.py b/tests/test_observers/test_file_storage_observer.py
index 04d1f668..34f43f2f 100644
--- a/tests/test_observers/test_file_storage_observer.py
+++ b/tests/test_observers/test_file_storage_observer.py
@@ -413,3 +413,11 @@ def test_log_metrics(dir_obs, sample_run, logged_metrics):
     accuracy = metrics["training.accuracy"]
     assert accuracy["steps"] == [10, 20, 30]
     assert accuracy["values"] == [100, 200, 300]
+
+
+def test_observer_equality(tmpdir):
+    observer_1 = FileStorageObserver.create(tmpdir / 'a')
+    observer_2 = FileStorageObserver.create(tmpdir / 'b')
+    observer_3 = FileStorageObserver.create(tmpdir / 'a')
+    assert observer_1 == observer_3
+    assert observer_1 != observer_2