diff --git a/model_tools/parameters_storage.py b/model_tools/parameters_storage.py
index 3b78f5ba0aeef6cba0f105b1403c68dc74b4cc4d..06272036edbc6f36b4d33a1c45020f5a88b29e46 100644
--- a/model_tools/parameters_storage.py
+++ b/model_tools/parameters_storage.py
@@ -26,7 +26,7 @@ class ParametersStorage(NestedMKDict):
                 continue
 
             key = '.'.join(key)
-            labels.setdefault('paths', []).append(key)
+            labels.paths.append(key)
 
     def plot(
         self,
diff --git a/submodules/dagflow b/submodules/dagflow
index 91c7262a3ce404f4c74773f7fb4f3068ce03e3a7..152dca0959b8d373502128a2ace7a84003b0c543 160000
--- a/submodules/dagflow
+++ b/submodules/dagflow
@@ -1 +1 @@
-Subproject commit 91c7262a3ce404f4c74773f7fb4f3068ce03e3a7
+Subproject commit 152dca0959b8d373502128a2ace7a84003b0c543