diff --git a/hosts/leon/default.nix b/hosts/leon/default.nix
index a286e7b5..6bc30150 100644
--- a/hosts/leon/default.nix
+++ b/hosts/leon/default.nix
@@ -154,8 +154,13 @@
 		  publicKey= "FRuPoJ1XVGWTeGO2vZPd4MC0hxjRailAzhMHg3ZegV0=";
           allowedIPs = [ "10.10.11.30" ];
 	    }
-	   #---------------------black----------------------------.
-	   
+	   #---------------------M-dev---------------------------.
+	   {
+		  #M-dev-pc
+		  publicKey= "l63JSZVnqWgFvKol+MlXWPnPjwq3b0L8gVkOzQz/F3k=";
+          allowedIPs = [ "10.10.11.21" ];
+	    }
+
 	  ];
   };
  };