diff --git a/src/const.py.in b/src/const.py.in
index e01af6cb8..638d6e0bf 100644
--- a/src/const.py.in
+++ b/src/const.py.in
@@ -191,6 +191,16 @@ XMLFILE      = "data.gramps"
 NO_SURNAME   = "(%s)" % _("none")
 NO_GIVEN     = "(%s)" % _("none")
 
+#-------------------------------------------------------------------------
+#
+# Platforms
+# Never test on LINUX, handle Linux in the else statement as default
+#
+#-------------------------------------------------------------------------
+LINUX = ["Linux", "linux"]
+MACOS = ["Darwin", "darwin"]
+WINDOWS = ["Windows", "win32"]
+
 #-------------------------------------------------------------------------
 #
 # Options Constants