diff --git a/striker-proto/src/lib.rs b/striker-proto/src/lib.rs
index 3d15df8..8f92068 100644
--- a/striker-proto/src/lib.rs
+++ b/striker-proto/src/lib.rs
@@ -55,18 +55,16 @@ pub enum Update {
     },
 }
 
-pub fn send_response(response: StrikerResponse, buf: &mut [u8]) -> Result<(), postcard::Error> {
-    postcard::to_slice(&response, buf)?;
-    Ok(())
+pub fn send_response(response: StrikerResponse, buf: &mut [u8]) -> Result<&mut [u8], postcard::Error> {
+    postcard::to_slice(&response, buf)
 }
 
 pub fn receive_response(buf: &mut [u8]) -> Result<StrikerResponse, postcard::Error> {
     postcard::from_bytes(buf)
 }
 
-pub fn send_request(request: StrikerRequest, buf: &mut [u8]) -> Result<(), postcard::Error> {
-    postcard::to_slice(&request, buf)?;
-    Ok(())
+pub fn send_request(request: StrikerRequest, buf: &mut [u8]) -> Result<&mut [u8], postcard::Error> {
+    postcard::to_slice(&request, buf)
 }
 
 pub fn receive_request(buf: &mut [u8]) -> Result<StrikerRequest, postcard::Error> {