diff --git a/vendor/bpwatch/bpwatch b/vendor/bpwatch/bpwatch
index bbd7127..7c0a5b8 100755
--- a/vendor/bpwatch/bpwatch
+++ b/vendor/bpwatch/bpwatch
@@ -5,7 +5,7 @@ import os
 import sys
 
 
-DEFAULT_PATH = '{}.zip'.format(os.path.abspath(__file__))
+DEFAULT_PATH = '{0}.zip'.format(os.path.abspath(__file__))
 BPWATCH_DISTRO_PATH = os.environ.get('BPWATCH_DISTRO_PATH', DEFAULT_PATH)
 
 sys.path.insert(0, BPWATCH_DISTRO_PATH)