diff --git a/README.md b/README.md
index 4c3ca8df..00abfcbc 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ CAD program, and create G-Code for Isolation routing.
 19.11.2019
 
 - removed the f-strings replacing them with the traditional string formatting due of not being supported by older versions of Python 3
+- fixed some TclCommands: MillDrills and OpenGerber
 
 18.11.2019
 
diff --git a/tclCommands/TclCommandMillDrills.py b/tclCommands/TclCommandMillDrills.py
index 2d88d12f..cb441758 100644
--- a/tclCommands/TclCommandMillDrills.py
+++ b/tclCommands/TclCommandMillDrills.py
@@ -5,9 +5,11 @@
 # MIT Licence                                              #
 # ##########################################################
 
-from ObjectCollection import *
 from tclCommands.TclCommand import TclCommandSignaled
+from FlatCAMObj import FlatCAMExcellon
+
 import math
+import collections
 
 
 class TclCommandMillDrills(TclCommandSignaled):
diff --git a/tclCommands/TclCommandOpenGerber.py b/tclCommands/TclCommandOpenGerber.py
index 4c4c6ba6..0b67f83c 100644
--- a/tclCommands/TclCommandOpenGerber.py
+++ b/tclCommands/TclCommandOpenGerber.py
@@ -1,5 +1,6 @@
 from tclCommands.TclCommand import TclCommandSignaled
-from camlib import Geometry, ParseError
+from camlib import ParseError
+from FlatCAMObj import FlatCAMGerber
 
 import collections