diff --git a/files/synchronize b/files/synchronize
index 4080399ebf6..c3a09c42aaf 100644
--- a/files/synchronize
+++ b/files/synchronize
@@ -136,6 +136,7 @@ options:
       - Specify additional rsync options by passing in an array. (added in Ansible 1.6)
     default:
     required: false
+    version_added: "1.6"
 notes:
    - Inspect the verbose output to validate the destination user/host/path
      are what was expected.