diff --git a/tests/test_ec2/test_tags.py b/tests/test_ec2/test_tags.py
index adf2a697..a25d31e2 100644
--- a/tests/test_ec2/test_tags.py
+++ b/tests/test_ec2/test_tags.py
@@ -348,7 +348,7 @@ def test_retrieved_snapshots_must_contain_their_tags():
 
 
 @mock_ec2
-def test_filter_instances_by_tags():
+def test_filter_instances_by_wildcard_tags():
     conn = boto.connect_ec2(aws_access_key_id='the_key', aws_secret_access_key='the_secret')
     reservation = conn.run_instances('ami-1234abcd')
     instance_a = reservation.instances[0]
@@ -359,3 +359,9 @@ def test_filter_instances_by_tags():
 
     reservations = conn.get_all_instances(filters={'tag:Key1': 'Value*'})
     reservations.should.have.length_of(2)
+
+    reservations = conn.get_all_instances(filters={'tag-key': 'Key*'})
+    reservations.should.have.length_of(2)
+
+    reservations = conn.get_all_instances(filters={'tag-value': 'Value*'})
+    reservations.should.have.length_of(2)