diff --git a/python/varspark/etc.py b/python/varspark/etc.py
index ac2d91a8..95141bbd 100644
--- a/python/varspark/etc.py
+++ b/python/varspark/etc.py
@@ -12,8 +12,9 @@ def find_jar():
     jars_dir = pkg_resources.resource_filename(__name__, "jars")
     if not os.path.isdir(jars_dir):
         # then it can be an develoment install
-        jars_dir = os.path.abspath(pkg_resources.resource_filename(__name__,
-                                                                   os.path.join(os.pardir,
-                                                                                os.pardir,
-                                                                                "target")))
+        jars_dir = os.path.abspath(
+            pkg_resources.resource_filename(
+                __name__, os.path.join(os.pardir, os.pardir, "target")
+            )
+        )
     return glob.glob(os.path.join(jars_dir, "*-all.jar"))[0]