diff --git a/lib/galaxy/tool_util/linters/datatypes.py b/lib/galaxy/tool_util/linters/datatypes.py
index a4f4514d399..6d7c72a8c6b 100644
--- a/lib/galaxy/tool_util/linters/datatypes.py
+++ b/lib/galaxy/tool_util/linters/datatypes.py
@@ -19,7 +19,7 @@ if TYPE_CHECKING:
     from galaxy.tool_util.parser import ToolSource
     from galaxy.util.resources import Traversable
 
-DATATYPES_CONF = getenv("DATATYPES_CONF", resource_path(__package__, "datatypes_conf.xml.sample"))
+DATATYPES_CONF = getenv("DATATYPES_CONF", resource_path(__name__, "datatypes_conf.xml.sample"))
 
 
 def _parse_datatypes(datatype_conf_path: Union[str, "Traversable"]) -> Set[str]: