diff --git a/Makefile b/Makefile
index 6f4dbeb..dab9a77 100644
--- a/Makefile
+++ b/Makefile
@@ -23,6 +23,9 @@ install: programs/sxmo_setpineled programs/sxmo_setpinebacklight programs/sxmo_s
 	mkdir -p $(PREFIX)/etc/alsa/conf.d/
 	cp configs/alsa_sxmo_enable_dmix.conf $(PREFIX)/etc/alsa/conf.d/
 
+	mkdir -p $(PREFIX)/etc/polkit-1/rules.d
+	cp configs/00-sxmo.rules $(PREFIX)/etc/polkit-1/rules.d/
+
 	mkdir -p $(PREFIX)/usr/bin
 	cp scripts/*/* $(PREFIX)/usr/bin
 
diff --git a/configs/00-sxmo.rules b/configs/00-sxmo.rules
new file mode 100644
index 0000000..c1b52dd
--- /dev/null
+++ b/configs/00-sxmo.rules
@@ -0,0 +1,7 @@
+polkit.addRule(function(action, subject) {
+  if (action.id.indexOf("org.freedesktop.ModemManager1.") == 0 &&
+      subject.isInGroup("plugdev")) {
+
+      return polkit.Result.YES;
+  }
+});