diff --git a/gui/main_window_qt.py b/gui/main_window_qt.py
index f2bcd1c..88cad51 100644
--- a/gui/main_window_qt.py
+++ b/gui/main_window_qt.py
@@ -101,7 +101,15 @@ class MainWindow(QMainWindow):
         self.resize(900, 700)
 
         # Set application icon
-        icon_path = Path(__file__).parent.parent / "LocalTranscription.png"
+        # In PyInstaller frozen executables, use _MEIPASS for bundled files
+        import sys
+        if getattr(sys, 'frozen', False):
+            # Running in PyInstaller bundle
+            icon_path = Path(sys._MEIPASS) / "LocalTranscription.png"
+        else:
+            # Running in normal Python
+            icon_path = Path(__file__).parent.parent / "LocalTranscription.png"
+
         if icon_path.exists():
             from PySide6.QtGui import QIcon
             self.setWindowIcon(QIcon(str(icon_path)))
diff --git a/local-transcription.spec b/local-transcription.spec
index ac593c8..dcfdff1 100644
--- a/local-transcription.spec
+++ b/local-transcription.spec
@@ -36,6 +36,7 @@ except ImportError:
 binaries = []
 datas = [
     ('config/default_config.yaml', 'config'),
+    ('LocalTranscription.png', '.'),  # Include icon for runtime window icon
     (vad_assets_path, 'faster_whisper/assets'),  # Include VAD model
 ] + pvporcupine_data_files  # Include pvporcupine resources
 hiddenimports = [
diff --git a/main.py b/main.py
index ffedd40..a97e78e 100644
--- a/main.py
+++ b/main.py
@@ -89,7 +89,14 @@ def main():
         app.setOrganizationName("LocalTranscription")
 
         # Set application icon
-        icon_path = project_root / "LocalTranscription.png"
+        # In PyInstaller frozen executables, use _MEIPASS for bundled files
+        if getattr(sys, 'frozen', False):
+            # Running in PyInstaller bundle
+            icon_path = Path(sys._MEIPASS) / "LocalTranscription.png"
+        else:
+            # Running in normal Python
+            icon_path = project_root / "LocalTranscription.png"
+
         if icon_path.exists():
             from PySide6.QtGui import QIcon
             app.setWindowIcon(QIcon(str(icon_path)))