typo
diff --git a/src/folsom_vm_metrics.erl b/src/folsom_vm_metrics.erl
index 7924b6e..7ad5006 100644
--- a/src/folsom_vm_metrics.erl
+++ b/src/folsom_vm_metrics.erl
@@ -190,7 +190,7 @@
 get_socket_protocol(Socket) ->
     case erlang:port_info(Socket, name) of
         {name, "tcp_inet"} ->
-            [{procotol, tcp}];
+            [{protocol, tcp}];
         {name, "udp_inet"} ->
             [{protocol, udp}];
         {name,"sctp_inet"} ->