diff --git a/README.md b/README.md
index f6d91ca3..9366d261 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,7 @@ CAD program, and create G-Code for Isolation routing.
 - fixed open handlers
 - fixed issue in NCC Tool where the tool table context menu could be installed multiple times
 - added new ability to create simple isolation's in the NCC Tool
+- fixed an issue when multi depth step is larger than the depth of cut
 
 27.08.2019
 
diff --git a/camlib.py b/camlib.py
index fecba319..920ef251 100644
--- a/camlib.py
+++ b/camlib.py
@@ -5765,8 +5765,8 @@ class CNCjob(Geometry):
             return 'fail'
 
         # made sure that depth_per_cut is no more then the z_cut
-        if self.z_cut < self.z_depthpercut:
-            self.z_depthpercut = self.z_cut
+        if abs(self.z_cut) < self.z_depthpercut:
+            self.z_depthpercut = abs(self.z_cut)
 
         if self.z_move is None:
             self.app.inform.emit(_("[ERROR_NOTCL] Travel Z parameter is None or zero."))
@@ -6073,6 +6073,10 @@ class CNCjob(Geometry):
                                    "This is dangerous, skipping %s file") % self.options['name'])
             return 'fail'
 
+        # made sure that depth_per_cut is no more then the z_cut
+        if abs(self.z_cut) < self.z_depthpercut:
+            self.z_depthpercut = abs(self.z_cut)
+
         # ## Index first and last points in paths
         # What points to index.
         def get_pts(o):