diff --git a/libs/langchain/langchain/chains/graph_qa/cypher.py b/libs/langchain/langchain/chains/graph_qa/cypher.py
index f8507408195f1..50ee3771d6a63 100644
--- a/libs/langchain/langchain/chains/graph_qa/cypher.py
+++ b/libs/langchain/langchain/chains/graph_qa/cypher.py
@@ -37,7 +37,7 @@ def extract_cypher(text: str) -> str:
 
 
 def construct_schema(
-    structured_schema: Dict[str, Dict[str, Any]],
+    structured_schema: Dict[str, Any],
     include_types: List[str],
     exclude_types: List[str],
 ) -> str:
@@ -46,17 +46,12 @@ def construct_schema(
     def filter_func(x: str) -> bool:
         return x in include_types if include_types else x not in exclude_types
 
+    node_props: Dict[str, Any] = structured_schema.get("node_props", {})
+    rel_props: Dict[str, Any] = structured_schema.get("rel_props", {})
+
     filtered_schema = {
-        "node_props": {
-            k: v
-            for k, v in structured_schema.get("node_props", {}).items()
-            if filter_func(k)
-        },
-        "rel_props": {
-            k: v
-            for k, v in structured_schema.get("rel_props", {}).items()
-            if filter_func(k)
-        },
+        "node_props": {k: v for k, v in node_props.items() if filter_func(k)},
+        "rel_props": {k: v for k, v in rel_props.items() if filter_func(k)},
         "relationships": [
             r
             for r in structured_schema.get("relationships", [])