diff --git a/lib/ansible/playbook/play.py b/lib/ansible/playbook/play.py
index dd90f206ea0..6e76cf717bd 100644
--- a/lib/ansible/playbook/play.py
+++ b/lib/ansible/playbook/play.py
@@ -112,7 +112,7 @@ class Play(object):
         self.gather_facts     = ds.get('gather_facts', None)
         self.remote_port      = self.remote_port
         self.any_errors_fatal = ds.get('any_errors_fatal', False)
-        self.accelerate       = ds.get('accelerate', False)
+        self.accelerate       = utils.boolean(ds.get('accelerate', 'false'))
         self.accelerate_port  = ds.get('accelerate_port', None)
         self.max_fail_pct     = int(ds.get('max_fail_percentage', 100))