diff --git a/src/NanoVNASaver/NanoVNASaver.py b/src/NanoVNASaver/NanoVNASaver.py
index 7c07495..f41b5ab 100644
--- a/src/NanoVNASaver/NanoVNASaver.py
+++ b/src/NanoVNASaver/NanoVNASaver.py
@@ -98,7 +98,7 @@ class NanoVNASaver(QWidget):
                 f"{sys._MEIPASS}/icon_48x48.png"
             )  # pylint: disable=no-member
         else:
-            self.icon = QtGui.QIcon("icon_48x48.png")
+            self.icon = QtGui.QIcon("/usr/share/icons/hicolor/48x48/apps/NanoVNASaver_48x48.png")
         self.setWindowIcon(self.icon)
         self.settings = Defaults.AppSettings(
             QtCore.QSettings.Format.IniFormat,