diff --git a/README.md b/README.md
index bbfbbd1e..c5c797b5 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,7 @@ CAD program, and create G-Code for Isolation routing.
 - added ability to save the Source File as PDF (still have to adjust the page size)
 - fixed the generate_from_geometry_2() method to use the default values in case the parameters are None
 - added ability to save the Source File as PDF - fixed page size and added line breaks
+- more mods to generate_from_geometry_2() method
 
 16.12.2019
 
diff --git a/camlib.py b/camlib.py
index aaf49c82..f699ee36 100644
--- a/camlib.py
+++ b/camlib.py
@@ -3488,7 +3488,10 @@ class CNCjob(Geometry):
                 return 'fail'
 
         # made sure that depth_per_cut is no more then the z_cut
-        if abs(self.z_cut) < self.z_depthpercut:
+        try:
+            if abs(self.z_cut) < self.z_depthpercut:
+                self.z_depthpercut = abs(self.z_cut)
+        except TypeError:
             self.z_depthpercut = abs(self.z_cut)
 
         # ## Index first and last points in paths