diff --git a/49-stm32l-discovery.rules b/49-stm32l-discovery.rules
new file mode 100644
index 0000000..1f3ce77
--- /dev/null
+++ b/49-stm32l-discovery.rules
@@ -0,0 +1,10 @@
+# stm32l discovery board, with onboard st/linkv2
+#
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="3748", \
+    MODE:="0666", \
+    SYMLINK+="stm32l_stlink%n"
+#
+# If you share your linux system with other users, or just don't like the
+# idea of write permission for everybody, you can replace MODE:="0666" with
+# OWNER:="yourusername" to create the device owned by you, or with
+# GROUP:="somegroupname" and mange access using standard unix groups.