diff --git a/streamlit_parameters/demos/parameters.py b/streamlit_parameters/demos/parameters.py
index 8c53179..94f6efa 100644
--- a/streamlit_parameters/demos/parameters.py
+++ b/streamlit_parameters/demos/parameters.py
@@ -214,8 +214,7 @@ def main():
     streamlit.write("## Debugging")
 
     streamlit.write("#### Query String")
-    query_string: typing.Dict[str, str] = streamlit.query_params
-    streamlit.write(query_string)
+    streamlit.write(streamlit.query_params)
 
     streamlit.write("#### Parameters")
     streamlit.write(parameters.as_dict())