diff --git a/syncplay/ui/GuiConfiguration.py b/syncplay/ui/GuiConfiguration.py
index 224a039..3d11b56 100644
--- a/syncplay/ui/GuiConfiguration.py
+++ b/syncplay/ui/GuiConfiguration.py
@@ -438,8 +438,7 @@ class ConfigDialog(QtGui.QDialog):
         except ValueError:
             self.slowdownThresholdSpinbox.setValue(constants.DEFAULT_SLOWDOWN_KICKIN_THRESHOLD)
         self.slowdownThresholdSpinbox.setSizePolicy(QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Minimum)
-        self.slowdownThresholdSpinbox.setMinimumWidth(80)
-        self.slowdownThresholdSpinbox.setMaximumWidth(80)
+        self.slowdownThresholdSpinbox.setFixedWidth(self.slowdownThresholdSpinbox.minimumSizeHint().width())
         self.slowdownThresholdSpinbox.setMinimum(constants.MINIMUM_SLOWDOWN_THRESHOLD)
         self.slowdownThresholdSpinbox.setSingleStep(0.1)
         self.slowdownThresholdSpinbox.setSuffix(getMessage("seconds-suffix"))
@@ -456,8 +455,7 @@ class ConfigDialog(QtGui.QDialog):
         except ValueError:
             self.rewindThresholdSpinbox.setValue(constants.DEFAULT_REWIND_THRESHOLD)
         self.rewindThresholdSpinbox.setSizePolicy(QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Minimum)
-        self.rewindThresholdSpinbox.setMinimumWidth(80)
-        self.rewindThresholdSpinbox.setMaximumWidth(80)
+        self.rewindThresholdSpinbox.setFixedWidth(self.rewindThresholdSpinbox.minimumSizeHint().width())
         self.rewindThresholdSpinbox.setMinimum(constants.MINIMUM_REWIND_THRESHOLD)
         self.rewindThresholdSpinbox.setSingleStep(0.1)
         self.rewindThresholdSpinbox.setSuffix(getMessage("seconds-suffix"))