diff --git a/bitbake/lib/bb/data_smart.py b/bitbake/lib/bb/data_smart.py
index c6049d578e..03010356ab 100644
--- a/bitbake/lib/bb/data_smart.py
+++ b/bitbake/lib/bb/data_smart.py
@@ -31,7 +31,7 @@ logger = logging.getLogger("BitBake.Data")
 
 __setvar_keyword__ = [":append", ":prepend", ":remove"]
 __setvar_regexp__ = re.compile(r'(?P<base>.*?)(?P<keyword>:append|:prepend|:remove)(:(?P<add>[^A-Z]*))?$')
-__expand_var_regexp__ = re.compile(r"\${[a-zA-Z0-9\-_+./~:]+?}")
+__expand_var_regexp__ = re.compile(r"\${[a-zA-Z0-9\-_+./~:]+}")
 __expand_python_regexp__ = re.compile(r"\${@(?:{.*?}|.)+?}")
 __whitespace_split__ = re.compile(r'(\s)')
 __override_regexp__ = re.compile(r'[a-z0-9]+')