diff --git a/include/erlcloud_aws.hrl b/include/erlcloud_aws.hrl
index 0120c326..bd5deeb7 100644
--- a/include/erlcloud_aws.hrl
+++ b/include/erlcloud_aws.hrl
@@ -8,7 +8,7 @@
     mturk_host="mechanicalturk.amazonaws.com"::string(),
     mon_host="monitoring.amazonaws.com"::string(),
     mon_port=undefined::non_neg_integer()|undefined,
-    mon_prot=undefined::string()|undefined,
+    mon_protocol=undefined::string()|undefined,
     access_key_id::string(),
     secret_access_key::string()
 }).
diff --git a/src/erlcloud_aws.erl b/src/erlcloud_aws.erl
index 3f004980..86bc9b1c 100644
--- a/src/erlcloud_aws.erl
+++ b/src/erlcloud_aws.erl
@@ -10,13 +10,13 @@
 aws_request_xml(Method, Host, Path, Params, AccessKeyID, SecretAccessKey) ->
     Body = aws_request(Method, Host, Path, Params, AccessKeyID, SecretAccessKey),
     element(1, xmerl_scan:string(Body)).
-aws_request_xml(Method, Prot, Host, Port, Path, Params, AccessKeyID, SecretAccessKey) ->
-    Body = aws_request(Method, Prot, Host, Port, Path, Params, AccessKeyID, SecretAccessKey),
+aws_request_xml(Method, Protocol, Host, Port, Path, Params, AccessKeyID, SecretAccessKey) ->
+    Body = aws_request(Method, Protocol, Host, Port, Path, Params, AccessKeyID, SecretAccessKey),
     element(1, xmerl_scan:string(Body)).
 
 aws_request(Method, Host, Path, Params, AccessKeyID, SecretAccessKey) ->
     aws_request(Method, undefined, Host, undefined, Path, Params, AccessKeyID, SecretAccessKey).
-aws_request(Method, Prot, Host, Port, Path, Params, AccessKeyID, SecretAccessKey) ->
+aws_request(Method, Protocol, Host, Port, Path, Params, AccessKeyID, SecretAccessKey) ->
     Timestamp = format_timestamp(erlang:universaltime()),
     QParams = lists:sort([{"Timestamp", Timestamp},
                           {"SignatureVersion", "2"},
@@ -30,14 +30,14 @@ aws_request(Method, Prot, Host, Port, Path, Params, AccessKeyID, SecretAccessKey
 
     Query = [QueryToSign, "&Signature=", erlcloud_http:url_encode(Signature)],
 
-    case Prot of
-        undefined -> UProt = "https://";
-        _ -> UProt = [Prot, "://"]
+    case Protocol of
+        undefined -> UProtocol = "https://";
+        _ -> UProtocol = [Protocol, "://"]
     end,
 
     case Port of
-        undefined -> URL = [UProt, Host, Path];
-        _ -> URL = [UProt, Host, $:, port_to_str(Port), Path]
+        undefined -> URL = [UProtocol, Host, Path];
+        _ -> URL = [UProtocol, Host, $:, port_to_str(Port), Path]
     end,
 
     Response =
diff --git a/src/erlcloud_mon.erl b/src/erlcloud_mon.erl
index 80c5d20d..f673230d 100644
--- a/src/erlcloud_mon.erl
+++ b/src/erlcloud_mon.erl
@@ -252,7 +252,7 @@ mon_query(Config, Action, Params) ->
 mon_query(Config, Action, Params, ApiVersion) ->
     QParams = [{"Action", Action}, {"Version", ApiVersion}|Params],
     erlcloud_aws:aws_request_xml(get,
-                                 Config#aws_config.mon_prot,
+                                 Config#aws_config.mon_protocol,
                                  Config#aws_config.mon_host,
                                  Config#aws_config.mon_port,
                                  "/",
@@ -266,7 +266,7 @@ configure_host(Host, Port, Protocol) ->
     Config = default_config(),
     NewConfig = Config#aws_config{mon_host=Host,
                                   mon_port=Port,
-                                  mon_prot=Protocol},
+                                  mon_protocol=Protocol},
     put(aws_config, NewConfig).