diff --git a/src/Mod/Path/Path/Post/UtilsParse.py b/src/Mod/Path/Path/Post/UtilsParse.py
index 20cf7ac80d..d83dd7b065 100644
--- a/src/Mod/Path/Path/Post/UtilsParse.py
+++ b/src/Mod/Path/Path/Post/UtilsParse.py
@@ -291,8 +291,7 @@ def init_parameter_functions(parameter_functions):
         "Z": default_axis_parameter,
         # "$" is used by LinuxCNC (and others?) to designate which spindle
     }
-    for parameter in default_parameter_functions:
-        parameter_functions[parameter] = default_parameter_functions[parameter]
+    parameter_functions.update(default_parameter_functions)
 
 
 def linenumber(values, space=None):