diff --git a/awesomerc.lua b/awesomerc.lua
index e861bddd4..907d0f50c 100644
--- a/awesomerc.lua
+++ b/awesomerc.lua
@@ -377,7 +377,19 @@ clientkeys = awful.util.table.join(
             c.maximized = not c.maximized
             c:raise()
         end ,
-        {description = "maximize", group = "client"})
+        {description = "(un)maximize", group = "client"}),
+    awful.key({ modkey, "Control" }, "m",
+        function (c)
+            c.maximized_vertical = not c.maximized_vertical
+            c:raise()
+        end ,
+        {description = "(un)maximize vertically", group = "client"}),
+    awful.key({ modkey, "Shift"   }, "m",
+        function (c)
+            c.maximized_horizontal = not c.maximized_horizontal
+            c:raise()
+        end ,
+        {description = "(un)maximize horizontally", group = "client"})
 )
 
 -- @DOC_NUMBER_KEYBINDINGS@