diff --git a/include/aws/crt/io/Stream.h b/include/aws/crt/io/Stream.h
index 929ecba9c..b41f36413 100644
--- a/include/aws/crt/io/Stream.h
+++ b/include/aws/crt/io/Stream.h
@@ -156,7 +156,7 @@ namespace Aws
                  *
                  * @return return value of the underlying istream::peek
                  */
-                virtual uint8_t PeekImpl() const noexcept = 0;
+                virtual int64_t PeekImpl() const noexcept = 0;
 
               private:
                 static int s_Seek(aws_input_stream *stream, int64_t offset, enum aws_stream_seek_basis basis);
@@ -187,7 +187,7 @@ namespace Aws
                 StreamStatus GetStatusImpl() const noexcept override;
                 int64_t GetLengthImpl() const noexcept override;
                 bool SeekImpl(OffsetType offsetType, StreamSeekBasis seekBasis) noexcept override;
-                uint8_t PeekImpl() const noexcept override;
+                int64_t PeekImpl() const noexcept override;
 
               private:
                 std::shared_ptr<Aws::Crt::Io::IStream> m_stream;
diff --git a/source/io/Stream.cpp b/source/io/Stream.cpp
index 9bf8384d6..b16267f10 100644
--- a/source/io/Stream.cpp
+++ b/source/io/Stream.cpp
@@ -156,8 +156,7 @@ namespace Aws
                 // I have no idea why "readsome() doesn't work at all" for the original dev. It works well for me
                 // Jokes aside, read will always block and try to read till eof
                 // readsome will return available bytes without waiting for eof and without closing the stream.
-                auto actuallyRead = 0;
-                actuallyRead = m_stream->readsome(
+                auto actuallyRead = m_stream->readsome(
                     reinterpret_cast<char *>(buffer.buffer + buffer.len), buffer.capacity - buffer.len);
 
                 buffer.len += static_cast<size_t>(actuallyRead);
@@ -229,7 +228,7 @@ namespace Aws
                 return true;
             }
 
-            uint8_t StdIOStreamInputStream::PeekImpl() const noexcept
+            int64_t StdIOStreamInputStream::PeekImpl() const noexcept
             {
                 return m_stream->peek();
             }