diff --git a/moto/s3/models.py b/moto/s3/models.py
index 9e023f68d..d4506678b 100644
--- a/moto/s3/models.py
+++ b/moto/s3/models.py
@@ -474,12 +474,12 @@ class S3Backend(BaseBackend):
         bucket = self.get_bucket(bucket_name)
         return bucket.keys.pop(key_name)
 
-    def copy_key(self, src_bucket_name, src_key_name, dest_bucket_name, dest_key_name, storage=None, acl=None):
+    def copy_key(self, src_bucket_name, src_key_name, dest_bucket_name,
+                 dest_key_name, storage=None, acl=None, src_version_id=None):
         src_key_name = clean_key_name(src_key_name)
         dest_key_name = clean_key_name(dest_key_name)
-        src_bucket = self.get_bucket(src_bucket_name)
         dest_bucket = self.get_bucket(dest_bucket_name)
-        key = src_bucket.keys[src_key_name]
+        key = self.get_key(src_bucket_name, src_key_name, version_id=src_version_id)
         if dest_key_name != src_key_name:
             key = key.copy(dest_key_name)
         dest_bucket.keys[dest_key_name] = key
diff --git a/moto/s3/responses.py b/moto/s3/responses.py
index f27606c90..0339d6853 100644
--- a/moto/s3/responses.py
+++ b/moto/s3/responses.py
@@ -435,9 +435,11 @@ class ResponseObject(_TemplateEnvironmentMixin):
 
         if 'x-amz-copy-source' in request.headers:
             # Copy key
-            src_bucket, src_key = request.headers.get("x-amz-copy-source").split("/", 1)
+            src_key_parsed = urlparse(request.headers.get("x-amz-copy-source"))
+            src_bucket, src_key = src_key_parsed.path.split("/", 1)
+            src_version_id = parse_qs(src_key_parsed.query).get('versionId', [None])[0]
             self.backend.copy_key(src_bucket, src_key, bucket_name, key_name,
-                                  storage=storage_class, acl=acl)
+                                  storage=storage_class, acl=acl, src_version_id=src_version_id)
             mdirective = request.headers.get('x-amz-metadata-directive')
             if mdirective is not None and mdirective == 'REPLACE':
                 new_key = self.backend.get_key(bucket_name, key_name)
diff --git a/tests/test_s3/test_s3.py b/tests/test_s3/test_s3.py
index e2de0c473..88eb3f985 100644
--- a/tests/test_s3/test_s3.py
+++ b/tests/test_s3/test_s3.py
@@ -332,6 +332,22 @@ def test_copy_key():
     bucket.get_key("new-key").get_contents_as_string().should.equal(b"some value")
 
 
+@mock_s3
+def test_copy_key_with_version():
+    conn = boto.connect_s3('the_key', 'the_secret')
+    bucket = conn.create_bucket("foobar")
+    bucket.configure_versioning(versioning=True)
+    key = Key(bucket)
+    key.key = "the-key"
+    key.set_contents_from_string("some value")
+    key.set_contents_from_string("another value")
+
+    bucket.copy_key('new-key', 'foobar', 'the-key', src_version_id='0')
+
+    bucket.get_key("the-key").get_contents_as_string().should.equal(b"another value")
+    bucket.get_key("new-key").get_contents_as_string().should.equal(b"some value")
+
+
 @mock_s3
 def test_set_metadata():
     conn = boto.connect_s3('the_key', 'the_secret')