diff --git a/latex.py b/latex.py
index 6f288a0..8ccf572 100644
--- a/latex.py
+++ b/latex.py
@@ -1,7 +1,8 @@
 # Converts a TeX file into a PNG/SVG file.
 template = r"""
-\documentclass{{standalone}}
+\documentclass[utf8]{{standalone}}
     \usepackage{{amsmath}}
+    \usepackage[utf8]{{inputenc}}
     % TODO: Add user packages here.
 \begin{{document}}
     % The user content goes here.
@@ -24,7 +25,7 @@ def render(user: str, source: str, png: bool = True) -> str:
     # Parse our templated file thru' LaTeX and dvipng.
     # TODO: Allow arbitrary DPI and foreground color.
     ret = subprocess.run(["latex", "-halt-on-error", tmp.name], cwd="/tmp").returncode
-    if ret is not 0:
+    if ret != 0:
         raise FileNotFoundError("DVI couldn't be built.")
 
     if png:
diff --git a/main.py b/main.py
index 2b786a2..c940ab7 100644
--- a/main.py
+++ b/main.py
@@ -50,6 +50,8 @@ async def msg_cb(room: MatrixRoom, event: RoomMessageText) -> None:
             await client.room_send(room.room_id, message_type="m.room.message", content=content)
 
 # Our file callback.
+
+
 async def file_cb(room: MatrixRoom, event: RoomMessageFile) -> None:
     url = event.url
     filename = event.body
@@ -68,13 +70,14 @@ async def main() -> None:
         user = str(config["user"])
         token = str(config["token"])
         # path = str(config["path"]) # not used
-            # if config file does not exist, quit
+        # if config file does not exist, quit
     except FileNotFoundError:
-            print("No config file found.\nPlease create a file named `texlily.yaml` and read the README file.")
-            quit()
+        print("No config file found.")
+        print("Please create a file named `texlily.yaml` and read the README file.")
+        quit()
     except TypeError:
-            print("Invalid configuration file.")
-            quit()
+        print("Invalid configuration file.")
+        quit()
 
     client = AsyncClient(homeserver)
     client.access_token = token