diff --git a/lelcsc/core/models/component.py b/lelcsc/core/models/component.py
index 0ce960b..e910096 100644
--- a/lelcsc/core/models/component.py
+++ b/lelcsc/core/models/component.py
@@ -23,8 +23,8 @@ class Property(models.Model):
     )
 
     def __str__(self):
-        return (
-            self.name + f" [{self.unit}]" if self.type == Property.Type.QUANTITY else ""
+        return self.name + (
+            f" [{self.unit}]" if self.type == Property.Type.QUANTITY else ""
         )
 
 
@@ -48,13 +48,13 @@ class Value(models.Model):
     def __str__(self):
         match self.property.type:
             case Property.Type.QUANTITY:
-                s = str(integer)
+                s = str(self.integer)
 
                 scale = self.property.scale
                 if scale > 0:
                     s += "0" * scale
                 elif scale < 0:
-                    s = str(integer).rjust(abs(scale) + 1, "0")
+                    s = str(self.integer).rjust(abs(scale) + 1, "0")
                     s = s[:scale] + "." + s[scale:]
 
                 return f"{s} {self.property.unit}"