diff --git a/src/Mod/CAM/Path/Dressup/Gui/LeadInOut.py b/src/Mod/CAM/Path/Dressup/Gui/LeadInOut.py
index 0c9a18f8c0..d0bda652c4 100644
--- a/src/Mod/CAM/Path/Dressup/Gui/LeadInOut.py
+++ b/src/Mod/CAM/Path/Dressup/Gui/LeadInOut.py
@@ -818,6 +818,8 @@ class ObjectDressup:
 
     # Get finish index of mill command for one profile
     def findLastCutMultiProfileIndex(self, source, startIndex):
+        if startIndex >= len(source):
+            return len(source) - 1
         for i in range(startIndex, len(source), +1):
             if not self.isCuttingMove(source[i]):
                 return i - 1