diff --git a/octoprint/settings.py b/octoprint/settings.py
index cad4c8c9..7e0fab73 100644
--- a/octoprint/settings.py
+++ b/octoprint/settings.py
@@ -32,7 +32,8 @@ default_settings = {
 			"detection": 0.5,
 			"connection": 2,
 			"communication": 5
-		}
+		},
+		"additionalPorts": []
 	},
 	"server": {
 		"host": "0.0.0.0",
diff --git a/octoprint/util/comm.py b/octoprint/util/comm.py
index b7d788cc..5de61728 100644
--- a/octoprint/util/comm.py
+++ b/octoprint/util/comm.py
@@ -45,6 +45,11 @@ def serialList():
 			   + glob.glob("/dev/tty.usb*") \
 			   + glob.glob("/dev/cu.*") \
 			   + glob.glob("/dev/rfcomm*")
+
+	additionalPorts = settings().get(["serial", "additionalPorts"])
+	for additional in additionalPorts:
+		baselist += glob.glob(additional)
+
 	prev = settings().get(["serial", "port"])
 	if prev in baselist:
 		baselist.remove(prev)