diff --git a/src/modem.rs b/src/modem.rs
index 9bda57a..44644b0 100644
--- a/src/modem.rs
+++ b/src/modem.rs
@@ -268,7 +268,7 @@ impl<UART: serial::Uart> Modem<UART> {
         Ok(())
     }
 
-    fn tcp_parse_payload_size(&mut self, reply_line: &str) -> Result<usize> {
+    fn tcp_parse_response_size(&mut self, reply_line: &str) -> Result<usize> {
         reply_line.split(',')
             .into_iter()
             .last()
@@ -283,7 +283,7 @@ impl<UART: serial::Uart> Modem<UART> {
             .filter(|line| line.contains("+CIPRXGET: 4"))
             .next()
             .ok_or(ModemError::CommandError("reply not found :/".to_string()))
-            .map(|line| self.tcp_parse_payload_size(line))
+            .map(|line| self.tcp_parse_response_size(line))
             .unwrap_or(Err(ModemError::CommandError(format!("received 0 elements from parsing"))))
     }