diff --git a/pyrightconfig.json b/pyrightconfig.json
index 23ed1f3f0..0f42d8550 100644
--- a/pyrightconfig.json
+++ b/pyrightconfig.json
@@ -2,11 +2,16 @@
   "typeCheckingMode": "basic",
   "pythonVersion": "3.11",
   "pythonPlatform": "All",
-  "include": ["scripts", "src/pipecat"],
-  "exclude": ["**/*_pb2.py", "**/__pycache__"],
+  "include": [
+    "scripts",
+    "src/pipecat"
+  ],
+  "exclude": [
+    "**/*_pb2.py",
+    "**/__pycache__"
+  ],
   "ignore": [
     "tests",
-    "src/pipecat/adapters/schemas/direct_function.py",
     "src/pipecat/adapters/services/anthropic_adapter.py",
     "src/pipecat/adapters/services/aws_nova_sonic_adapter.py",
     "src/pipecat/adapters/services/bedrock_adapter.py",
diff --git a/src/pipecat/adapters/schemas/direct_function.py b/src/pipecat/adapters/schemas/direct_function.py
index 8ef93d1a7..b42fef604 100644
--- a/src/pipecat/adapters/schemas/direct_function.py
+++ b/src/pipecat/adapters/schemas/direct_function.py
@@ -127,7 +127,7 @@ class BaseDirectFunctionWrapper:
         self.name = self.function.__name__
 
         # Parse docstring for description and parameters
-        docstring = docstring_parser.parse(inspect.getdoc(self.function))
+        docstring = docstring_parser.parse(inspect.getdoc(self.function) or "")
 
         # Get function description
         self.description = (docstring.description or "").strip()