diff --git a/roop/core.py b/roop/core.py
index db83836..bfcd8b9 100755
--- a/roop/core.py
+++ b/roop/core.py
@@ -200,7 +200,7 @@ def start() -> None:
 def destroy() -> None:
     if roop.globals.target_path:
         clean_temp(roop.globals.target_path)
-    quit()
+    sys.exit()
 
 
 def run() -> None:
diff --git a/roop/processors/frame/core.py b/roop/processors/frame/core.py
index e79e3b3..06ac8d8 100644
--- a/roop/processors/frame/core.py
+++ b/roop/processors/frame/core.py
@@ -1,4 +1,5 @@
 import os
+import sys
 import importlib
 import psutil
 from concurrent.futures import ThreadPoolExecutor, as_completed
@@ -28,7 +29,7 @@ def load_frame_processor_module(frame_processor: str) -> Any:
             if not hasattr(frame_processor_module, method_name):
                 raise NotImplementedError
     except (ImportError, NotImplementedError):
-        quit(f'Frame processor {frame_processor} crashed.')
+        sys.exit(f'Frame processor {frame_processor} crashed.')
     return frame_processor_module
 
 
diff --git a/roop/ui.py b/roop/ui.py
index 13be3e7..7c99d77 100644
--- a/roop/ui.py
+++ b/roop/ui.py
@@ -1,4 +1,5 @@
 import os
+import sys
 import webbrowser
 import customtkinter as ctk
 from typing import Callable, Tuple
@@ -222,7 +223,7 @@ def update_preview(frame_number: int = 0) -> None:
     if roop.globals.source_path and roop.globals.target_path:
         temp_frame = get_video_frame(roop.globals.target_path, frame_number)
         if predict_frame(temp_frame):
-            quit()
+            sys.exit()
         source_face = get_one_face(cv2.imread(roop.globals.source_path))
         if not get_face_reference():
             reference_face = get_one_face(temp_frame, roop.globals.face_position)