diff --git a/src/Mod/Draft/DraftGui.py b/src/Mod/Draft/DraftGui.py
index 7684b9848a..ad356b18aa 100644
--- a/src/Mod/Draft/DraftGui.py
+++ b/src/Mod/Draft/DraftGui.py
@@ -837,7 +837,7 @@ class DraftToolBar:
         self.hideXYZ()
         self.labelRadius.setText(translate("draft", "Radius"))
         self.labelRadius.show()
-        self.radiusValue.setText(self.AFORMAT % 0)
+        self.radiusValue.setText(self.FORMAT % 0)
         self.radiusValue.show()
 
     def textUi(self):
diff --git a/src/Mod/Draft/DraftTools.py b/src/Mod/Draft/DraftTools.py
index ce902603da..211da25522 100644
--- a/src/Mod/Draft/DraftTools.py
+++ b/src/Mod/Draft/DraftTools.py
@@ -1127,6 +1127,7 @@ class Arc(Creator):
                             self.drawArc()
                         else: 
                             self.ui.labelRadius.setText("Start angle")
+                            self.ui.radiusValue.setText(self.ui.AFORMAT % 0)
                             self.linetrack.p1(self.center)
                             self.linetrack.on()
                             self.step = 2