diff --git a/pytec/tec_qt.py b/pytec/tec_qt.py
index 8e188d4..152b5b7 100644
--- a/pytec/tec_qt.py
+++ b/pytec/tec_qt.py
@@ -506,7 +506,7 @@ class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
                     c = {self.hw_rev_data['settings']['fan_k_c']}
                 <br>
                 Fan PWM range: 
-                    {self.hw_rev_data['settings']['min_fan_pwm']} – {self.hw_rev_data['settings']['max_fan_pwm']}
+                    {self.hw_rev_data['settings']['min_fan_pwm']} \u2013 {self.hw_rev_data['settings']['max_fan_pwm']}
                 <br>
                 Fan PWM frequency: {self.hw_rev_data['settings']['fan_pwm_freq_hz']} Hz
                 <br>