diff --git a/src/Mod/Path/PathScripts/PathToolControllerGui.py b/src/Mod/Path/PathScripts/PathToolControllerGui.py
index 19e4c72272..932bda4e43 100644
--- a/src/Mod/Path/PathScripts/PathToolControllerGui.py
+++ b/src/Mod/Path/PathScripts/PathToolControllerGui.py
@@ -156,7 +156,8 @@ class CommandPathToolController(object):
         if job:
             tool = PathToolBitGui.ToolBitSelector().getTool()
             if tool:
-                tc = Create("TC: {}".format(tool.Label), tool)
+                toolNr = max([tc.ToolNumber for tc in job.ToolController]) + 1
+                tc = Create("TC: {}".format(tool.Label), tool, toolNr)
                 job.Proxy.addToolController(tc)
                 FreeCAD.ActiveDocument.recompute()