diff --git a/FlatCAMApp.py b/FlatCAMApp.py
index da19e6dc..606894e2 100644
--- a/FlatCAMApp.py
+++ b/FlatCAMApp.py
@@ -1917,7 +1917,7 @@ class App(QtCore.QObject):
                                   'use_threads', 'value', 'x', 'x0', 'x1', 'y', 'y0', 'y1', 'z_cut', 'z_move',
                                   'default', 'feedrate_z', 'grbl_11', 'grbl_laser', 'hpgl', 'line_xyz', 'marlin',
                                   'Paste_1', 'Repetier', 'Toolchange_Custom', 'Roland_MDX_20', 'Toolchange_manual',
-                                  'Toolchange_Probe_MACH3', 'dwell', 'dwelltime', 'toolchange_xy'
+                                  'Toolchange_Probe_MACH3', 'dwell', 'dwelltime', 'toolchange_xy', 'iso_type'
                                   ]
 
         self.tcl_keywords = [
diff --git a/FlatCAMObj.py b/FlatCAMObj.py
index 8c9844fc..589f74e0 100644
--- a/FlatCAMObj.py
+++ b/FlatCAMObj.py
@@ -923,8 +923,8 @@ class FlatCAMGerber(FlatCAMObj, Gerber):
         except Exception as e:
             return "Operation failed: %s" % str(e)
 
-    def isolate(self, iso_type=None, dia=None, passes=None, overlap=None,
-                outname=None, combine=None, milling_type=None, follow=None):
+    def isolate(self, iso_type=None, dia=None, passes=None, overlap=None, outname=None, combine=None,
+                milling_type=None, follow=None):
         """
         Creates an isolation routing geometry object in the project.
 
@@ -947,13 +947,13 @@ class FlatCAMGerber(FlatCAMObj, Gerber):
             combine = bool(combine)
         if milling_type is None:
             milling_type = self.options["milling_type"]
+
         if iso_type is None:
             self.iso_type = 2
         else:
             self.iso_type = iso_type
 
-        base_name = self.options["name"] + "_iso"
-        base_name = outname or base_name
+        base_name = self.options["name"]
 
         def generate_envelope(offset, invert, envelope_iso_type=2, follow=None, passes=0):
             # isolation_geometry produces an envelope that is going on the left of the geometry
@@ -1061,12 +1061,15 @@ class FlatCAMGerber(FlatCAMObj, Gerber):
             return new_geometry
 
         if combine:
-            if self.iso_type == 0:
-                iso_name = self.options["name"] + "_ext_iso"
-            elif self.iso_type == 1:
-                iso_name = self.options["name"] + "_int_iso"
+            if outname is None:
+                if self.iso_type == 0:
+                    iso_name = base_name + "_ext_iso"
+                elif self.iso_type == 1:
+                    iso_name = base_name + "_int_iso"
+                else:
+                    iso_name = base_name + "_iso"
             else:
-                iso_name = base_name
+                iso_name = outname
 
             # TODO: This is ugly. Create way to pass data into init function.
             def iso_init(geo_obj, app_obj):
@@ -1167,19 +1170,25 @@ class FlatCAMGerber(FlatCAMObj, Gerber):
 
                 offset = dia * ((2 * i + 1) / 2.0) - (i * overlap * dia)
                 if passes > 1:
-                    if self.iso_type == 0:
-                        iso_name = self.options["name"] + "_ext_iso" + str(i + 1)
-                    elif self.iso_type == 1:
-                        iso_name = self.options["name"] + "_int_iso" + str(i + 1)
+                    if outname is None:
+                        if self.iso_type == 0:
+                            iso_name = base_name + "_ext_iso" + str(i + 1)
+                        elif self.iso_type == 1:
+                            iso_name = base_name + "_int_iso" + str(i + 1)
+                        else:
+                            iso_name = base_name + "_iso" + str(i + 1)
                     else:
-                        iso_name = base_name + str(i + 1)
+                        iso_name = outname
                 else:
-                    if self.iso_type == 0:
-                        iso_name = self.options["name"] + "_ext_iso"
-                    elif self.iso_type == 1:
-                        iso_name = self.options["name"] + "_int_iso"
+                    if outname is None:
+                        if self.iso_type == 0:
+                            iso_name = base_name + "_ext_iso"
+                        elif self.iso_type == 1:
+                            iso_name = base_name + "_int_iso"
+                        else:
+                            iso_name = base_name + "_iso"
                     else:
-                        iso_name = base_name
+                        iso_name = outname
 
                 # TODO: This is ugly. Create way to pass data into init function.
                 def iso_init(geo_obj, app_obj):
diff --git a/README.md b/README.md
index 0f851261..f6538fa8 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,7 @@ CAD program, and create G-Code for Isolation routing.
 - finished updating the TclCommand cncjob to work for multi-geo Geometry objects with the parameters from the args
 - fixed the TclCommand cncjob to use the -outname parameter
 - added some more keywords in the data_model for auto-completer
+- fixed isolate TclCommand to use correctly the -outname parameter
 
 14.09.2019