diff --git a/local_app.py b/local_app.py
index 2137e27..765f6a3 100644
--- a/local_app.py
+++ b/local_app.py
@@ -30,10 +30,10 @@
 with st.spinner('Initializing LLM...'):
     if 'llm' not in st.session_state:
         with st.spinner('Loading LLM...'):
-            if model_type == 'LlamaCpp':
+            if model_type.lower() == 'LlamaCpp'.lower():
                 llm = LlamaCpp(model_path=model_path, n_ctx=1000)
                 st.session_state.llm = llm
-            elif model_type == 'GPT4All':
+            elif model_type.lower() == 'GPT4All'.lower():
                 llm = GPT4All(model=model_path, backend='gptj', n_ctx=1000)
                 st.session_state.llm = llm
             else:
diff --git a/summary_utils.py b/summary_utils.py
index 3cd4ab7..0cf62d2 100644
--- a/summary_utils.py
+++ b/summary_utils.py
@@ -29,7 +29,7 @@ def doc_loader(file_path: str):
     :return: A langchain Document object.
     """
     if file_path.endswith('.txt'):
-        loader = TextLoader(file_path, encoding='utf-8')
+        loader = TextLoader(file_path)
     elif file_path.endswith('.pdf'):
         loader = PyPDFLoader(file_path)
     elif file_path.endswith('.epub'):
@@ -48,7 +48,7 @@ def directory_loader(directory):
     mixed_documents = []
     for file in files:
         if file.endswith('.txt'):
-            loader = TextLoader(os.path.join(directory, file), encoding='utf-8')
+            loader = TextLoader(os.path.join(directory, file))
             documents.append(loader.load())
         elif file.endswith('.pdf'):
             loader = PyPDFLoader(os.path.join(directory, file))