diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0fdd759f..2a298c08 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ CHANGELOG for FlatCAM beta
 
 - refactoring in camlib.py. Made sure that some conditions are met, if some of the parameters are None then return failure. Modifications in generate_from_geometry_2 and generate_from_multitool_geometry methods
 - fixed issue with trying to access GUI from different threads by adding a new signal for printing to shell messages
+- fixed a small issue in Gerber file opener filter that did not see the *.TOP extension or *.outline extension
 
 6.06.2020
 
diff --git a/app_Main.py b/app_Main.py
index 3b65ff01..e98a988a 100644
--- a/app_Main.py
+++ b/app_Main.py
@@ -6706,10 +6706,11 @@ class App(QtCore.QObject):
         self.defaults.report_usage("on_fileopengerber")
         App.log.debug("on_fileopengerber()")
 
-        _filter_ = "Gerber Files (*.gbr *.ger *.gtl *.gbl *.gts *.gbs *.gtp *.gbp *.gto *.gbo *.gm1 *.gml *.gm3 *" \
-                   ".gko *.cmp *.sol *.stc *.sts *.plc *.pls *.crc *.crs *.tsm *.bsm *.ly2 *.ly15 *.dim *.mil *.grb" \
-                   "*.top *.bot *.smt *.smb *.sst *.ssb *.spt *.spb *.pho *.gdo *.art *.gbd);;" \
-                   "Protel Files (*.gtl *.gbl *.gts *.gbs *.gto *.gbo *.gtp *.gbp *.gml *.gm1 *.gm3 *.gko);;" \
+        _filter_ = "Gerber Files (*.gbr *.ger *.gtl *.gbl *.gts *.gbs *.gtp *.gbp *.gto *.gbo *.gm1 *.gml *.gm3 " \
+                   "*.gko *.cmp *.sol *.stc *.sts *.plc *.pls *.crc *.crs *.tsm *.bsm *.ly2 *.ly15 *.dim *.mil *.grb " \
+                   "*.top *.bot *.smt *.smb *.sst *.ssb *.spt *.spb *.pho *.gdo *.art *.gbd *.outline);;" \
+                   "Protel Files (*.gtl *.gbl *.gts *.gbs *.gto *.gbo *.gtp *.gbp *.gml *.gm1 *.gm3 *.gko " \
+                   "*.outline);;" \
                    "Eagle Files (*.cmp *.sol *.stc *.sts *.plc *.pls *.crc *.crs *.tsm *.bsm *.ly2 *.ly15 *.dim " \
                    "*.mil);;" \
                    "OrCAD Files (*.top *.bot *.smt *.smb *.sst *.ssb *.spt *.spb);;" \