diff --git a/main.py b/main.py
index a05a673..f97eb87 100644
--- a/main.py
+++ b/main.py
@@ -1,13 +1,18 @@
+import os
 import customtkinter as ctk
 from src.app import PomodoroApp
 from src.utils import load_config, THEMES_DIR
 
 
+data_dir = os.path.dirname(__file__)
+
+
 def main():
     config = load_config()
-    ctk.set_default_color_theme(f"{THEMES_DIR}/{config['theme']}.json")
+    ctk.set_default_color_theme(os.path.join(data_dir, THEMES_DIR, f"{config['theme']}.json"))
     ctk.set_appearance_mode("dark")
-    app = PomodoroApp()
+    icon_path = os.path.join(data_dir, 'src', 'assets', 'icon.png')
+    app = PomodoroApp(icon_path)
     app.mainloop()
 
 
diff --git a/src/app.py b/src/app.py
index 9ca1abd..fee7edf 100644
--- a/src/app.py
+++ b/src/app.py
@@ -1,4 +1,5 @@
 import customtkinter as ctk
+from PIL.ImageTk import PhotoImage
 from src.frames.pomodoro_frame import PomodoroFrame
 from src.frames.settings_frame import SettingsFrame
 from src.frames.stats_frame import StatsFrame
@@ -34,11 +35,15 @@ class PomodoroApp(ctk.CTk):
     WIDTH = 350
     HEIGHT = 450
 
-    def __init__(self):
+    def __init__(self, icon_path):
         super().__init__()
         self.title("Pomodoro Tracker")
         self.geometry(f"{PomodoroApp.WIDTH}x{PomodoroApp.HEIGHT}")
         self.resizable(False, True)
 
+        img = PhotoImage(file=icon_path)
+        self.wm_iconbitmap()
+        self.wm_iconphoto(False, img)
+
         self.tabview = TabView(master=self)
         self.tabview.pack(pady=(15, 30), expand=True, fill='y')
diff --git a/src/assets/icon.png b/src/assets/icon.png
new file mode 100644
index 0000000..2758bcd
Binary files /dev/null and b/src/assets/icon.png differ