diff --git a/deckhand/common/utils.py b/deckhand/common/utils.py
index 19a3a5eb..a83d2a7e 100644
--- a/deckhand/common/utils.py
+++ b/deckhand/common/utils.py
@@ -106,7 +106,7 @@ def _populate_data_with_attributes(jsonpath, data):
     # Populates ``data`` with any path specified in ``jsonpath``. For example,
     # if jsonpath is ".foo[0].bar.baz" then for each subpath -- foo[0], bar,
     # and baz -- that key will be added to ``data`` if missing.
-    array_re = re.compile(r'.*\[\d\].*')
+    array_re = re.compile(r'.*\[\d+\].*')
 
     d = data
     for path in jsonpath.split('.')[1:]: