diff --git a/rascal2/widgets/inputs.py b/rascal2/widgets/inputs.py
index 39b7033..b69b3aa 100644
--- a/rascal2/widgets/inputs.py
+++ b/rascal2/widgets/inputs.py
@@ -103,7 +103,7 @@ def textFromValue(self, value):
             The string displayed on the spinbox.
 
         """
-        return f"{value:.{self.decimals()}g}"
+        return f"{round(value, self.decimals()):.{self.decimals()}g}"
 
     def validate(self, input, pos) -> tuple[QtGui.QValidator.State, str, int]:
         """Validate a string written into the spinbox.