diff --git a/tonic/src/client/grpc.rs b/tonic/src/client/grpc.rs
index f498796..0df98a2 100644
--- a/tonic/src/client/grpc.rs
+++ b/tonic/src/client/grpc.rs
@@ -22,8 +22,8 @@ use std::fmt;
 /// Each request method takes a [`Request`], a [`PathAndQuery`], and a
 /// [`Codec`]. The request contains the message to send via the
 /// [`Codec::encoder`]. The path determines the fully qualified path
-/// that will be appened to the outgoing uri. The path must follow
-/// the convetions explained in the [gRPC protocol definition] under `Path →`. An
+/// that will be append to the outgoing uri. The path must follow
+/// the conventions explained in the [gRPC protocol definition] under `Path →`. An
 /// example of this path could look like `/greeter.Greeter/SayHello`.
 ///
 /// [gRPC protocol definition]: https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests
diff --git a/tonic/src/codec/decode.rs b/tonic/src/codec/decode.rs
index 8169ac4..117ed64 100644
--- a/tonic/src/codec/decode.rs
+++ b/tonic/src/codec/decode.rs
@@ -101,7 +101,7 @@ impl<T> Streaming<T> {
 
     /// Fetch the trailing metadata.
     ///
-    /// This will drain the stream of all its messages to recieve the trailing
+    /// This will drain the stream of all its messages to receive the trailing
     /// metadata. If [`Streaming::message`] returns `None` then this function
     /// will not need to poll for trailers since the body was totally consumed.
     pub async fn trailers(&mut self) -> Result<Option<MetadataMap>, Status> {
@@ -192,7 +192,7 @@ impl<T> Stream for Streaming<T> {
     fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
         loop {
             // TODO: implement the ability to poll trailers when we _know_ that
-            // the comnsumer of this stream will only poll for the first message.
+            // the consumer of this stream will only poll for the first message.
             // This means we skip the poll_trailers step.
             match self.decode_chunk()? {
                 Some(item) => return Poll::Ready(Some(Ok(item))),
diff --git a/tonic/src/metadata/map.rs b/tonic/src/metadata/map.rs
index b14baa9..36483da 100644
--- a/tonic/src/metadata/map.rs
+++ b/tonic/src/metadata/map.rs
@@ -217,7 +217,7 @@ impl MetadataMap {
 
     /// Convert an HTTP HeaderMap to a MetadataMap
     pub fn from_headers(headers: http::HeaderMap) -> Self {
-        MetadataMap { headers: headers }
+        MetadataMap { headers }
     }
 
     /// Convert a MetadataMap into a HTTP HeaderMap