diff --git a/src/Mod/Draft/DraftSnap.py b/src/Mod/Draft/DraftSnap.py
index 7bd5ce5da..855e95110 100644
--- a/src/Mod/Draft/DraftSnap.py
+++ b/src/Mod/Draft/DraftSnap.py
@@ -515,7 +515,8 @@ class Snapper:
         delta = point.sub(self.basepoint)
 
         # setting constraint axis
-        self.affinity = FreeCAD.DraftWorkingPlane.getClosestAxis(delta)
+        if not self.affinity:
+            self.affinity = FreeCAD.DraftWorkingPlane.getClosestAxis(delta)
         if isinstance(axis,FreeCAD.Vector):
             self.constraintAxis = axis
         elif axis == "x":