diff --git a/tonic/src/client/grpc.rs b/tonic/src/client/grpc.rs
index 0d52fb42f..09ef3e934 100644
--- a/tonic/src/client/grpc.rs
+++ b/tonic/src/client/grpc.rs
@@ -399,6 +399,7 @@ impl GrpcConfig {
             .headers_mut()
             .insert(CONTENT_TYPE, HeaderValue::from_static("application/grpc"));
 
+        #[cfg(any(feature = "gzip", feature = "zstd"))]
         if let Some(encoding) = self.send_compression_encodings {
             request.headers_mut().insert(
                 crate::codec::compression::ENCODING_HEADER,
diff --git a/tonic/src/codec/compression.rs b/tonic/src/codec/compression.rs
index bf94ca3fd..70d758415 100644
--- a/tonic/src/codec/compression.rs
+++ b/tonic/src/codec/compression.rs
@@ -153,6 +153,7 @@ impl CompressionEncoding {
     }
 
     #[allow(missing_docs)]
+    #[cfg(any(feature = "gzip", feature = "zstd"))]
     pub(crate) fn as_str(&self) -> &'static str {
         match self {
             #[cfg(feature = "gzip")]
@@ -162,6 +163,7 @@ impl CompressionEncoding {
         }
     }
 
+    #[cfg(any(feature = "gzip", feature = "zstd"))]
     pub(crate) fn into_header_value(self) -> http::HeaderValue {
         http::HeaderValue::from_static(self.as_str())
     }
@@ -202,6 +204,8 @@ pub(crate) fn compress(
 ) -> Result<(), std::io::Error> {
     let capacity = ((len / BUFFER_SIZE) + 1) * BUFFER_SIZE;
     out_buf.reserve(capacity);
+
+    #[cfg(any(feature = "gzip", feature = "zstd"))]
     let mut out_writer = bytes::BufMut::writer(out_buf);
 
     match encoding {
@@ -241,6 +245,8 @@ pub(crate) fn decompress(
     let estimate_decompressed_len = len * 2;
     let capacity = ((estimate_decompressed_len / BUFFER_SIZE) + 1) * BUFFER_SIZE;
     out_buf.reserve(capacity);
+
+    #[cfg(any(feature = "gzip", feature = "zstd"))]
     let mut out_writer = bytes::BufMut::writer(out_buf);
 
     match encoding {
diff --git a/tonic/src/server/grpc.rs b/tonic/src/server/grpc.rs
index d8ec2a89c..ec94b97fb 100644
--- a/tonic/src/server/grpc.rs
+++ b/tonic/src/server/grpc.rs
@@ -443,6 +443,7 @@ where
             http::header::HeaderValue::from_static("application/grpc"),
         );
 
+        #[cfg(any(feature = "gzip", feature = "zstd"))]
         if let Some(encoding) = accept_encoding {
             // Set the content encoding
             parts.headers.insert(