diff --git a/upnp/src/gena/gena_device.c b/upnp/src/gena/gena_device.c
index 8c74483..f9b67c9 100644
--- a/upnp/src/gena/gena_device.c
+++ b/upnp/src/gena/gena_device.c
@@ -1167,7 +1167,7 @@ respond_ok( IN SOCKINFO * info,
     response.size_inc = 30;
     if( http_MakeMessage( &response, major, minor,
                           "R" "D" "S" "N" "Xc" "ssc" "sc" "c",
-                          HTTP_OK, 0, X_USER_AGENT,
+                          HTTP_OK, (off_t)0, X_USER_AGENT,
                           "SID: ", sub->sid, timeout_str ) != 0 ) {
         membuffer_destroy( &response );
         error_respond( info, HTTP_INTERNAL_SERVER_ERROR, request );
diff --git a/upnp/src/soap/soap_ctrlpt.c b/upnp/src/soap/soap_ctrlpt.c
index b54c9dc..09bbb39 100644
--- a/upnp/src/soap/soap_ctrlpt.c
+++ b/upnp/src/soap/soap_ctrlpt.c
@@ -650,7 +650,8 @@ SoapSendAction( IN char *action_url,
 
     // make request msg
     request.size_inc = 50;
-    if( http_MakeMessage( &request, 1, 1, "q" "N" "s" "sssbs" "U" "c" "bbb", SOAPMETHOD_POST, &url, xml_start_len + action_str_len + xml_end_len,   // content-length
+    if( http_MakeMessage( &request, 1, 1, "q" "N" "s" "sssbs" "U" "c" "bbb", SOAPMETHOD_POST, &url, 
+                          (off_t)xml_start_len + action_str_len + xml_end_len,   // content-length
                           ContentTypeHeader,
                           "SOAPACTION: \"", service_type, "#", name.buf,
                           name.length, "\"\r\n", xml_start, xml_start_len,