diff --git a/rust-runtime/smithy-http/src/body.rs b/rust-runtime/smithy-http/src/body.rs
index da6690e065bc0a623c7fdca9ce69efb0f4dc3ca4..78dcac5d422d0b70c9395b933995336a9fd33c3a 100644
--- a/rust-runtime/smithy-http/src/body.rs
+++ b/rust-runtime/smithy-http/src/body.rs
@@ -32,6 +32,7 @@ impl SdkBody {
             SdkBody::Once(ref mut opt) => {
                 let data = opt.take();
                 match data {
+                    Some(bytes) if bytes.is_empty() => Poll::Ready(None),
                     Some(bytes) => Poll::Ready(Some(Ok(bytes))),
                     None => Poll::Ready(None),
                 }