diff --git a/flowrep/workflow.py b/flowrep/workflow.py
index 8d38c3a..bbbbb11 100644
--- a/flowrep/workflow.py
+++ b/flowrep/workflow.py
@@ -1302,7 +1302,7 @@ def get_hashed_node_dict(
     if "function" not in nodes_dict[node]:
         raise ValueError("Hashing works only on flat data")
     data_dict = {
-        "nodes": _get_function_metadata(nodes_dict[node]["function"]),
+        "node": _get_function_metadata(nodes_dict[node]["function"]),
         "inputs": {},
         "outputs": list(nodes_dict[node]["outputs"].keys()),
     }
@@ -1324,7 +1324,7 @@ def get_hashed_node_dict(
         else:
             value = predecessor
         data_dict["inputs"][key] = value
-    data_dict["nodes"]["connected_inputs"] = connected_inputs
+    data_dict["node"]["connected_inputs"] = connected_inputs
     return data_dict
 
 
diff --git a/tests/unit/test_workflow.py b/tests/unit/test_workflow.py
index 2bea13c..e3cba4c 100644
--- a/tests/unit/test_workflow.py
+++ b/tests/unit/test_workflow.py
@@ -928,7 +928,7 @@ def workflow_with_data(a=10, b=20):
         self.assertEqual(
             data_dict,
             {
-                "nodes": {
+                "node": {
                     "module": add.__module__,
                     "qualname": "add",
                     "version": "not_defined",
@@ -945,7 +945,7 @@ def workflow_with_data(a=10, b=20):
         self.assertEqual(
             data_dict,
             {
-                "nodes": {
+                "node": {
                     "module": multiply.__module__,
                     "qualname": "multiply",
                     "version": "not_defined",