diff --git a/gems/smithy-client/lib/smithy-client/http/response.rb b/gems/smithy-client/lib/smithy-client/http/response.rb
index aca58c34b..e354fcbe0 100644
--- a/gems/smithy-client/lib/smithy-client/http/response.rb
+++ b/gems/smithy-client/lib/smithy-client/http/response.rb
@@ -151,6 +151,7 @@ def reset
           @status_code = 0
           @headers.clear
           @body.truncate(0)
+          @body.rewind
           @error = nil
         end
 
diff --git a/gems/smithy-client/spec/smithy-client/http/response_spec.rb b/gems/smithy-client/spec/smithy-client/http/response_spec.rb
index e8dc75e7b..f619d2b49 100644
--- a/gems/smithy-client/spec/smithy-client/http/response_spec.rb
+++ b/gems/smithy-client/spec/smithy-client/http/response_spec.rb
@@ -72,6 +72,16 @@ module Http
             expect(response.status_code).to eq(0)
             expect(response.error).to be_nil
           end
+
+          it 'rewinds the body position so subsequent writes start at the beginning' do
+            subject.signal_data('first response body')
+            subject.signal_done
+            subject.body.read
+            subject.reset
+            subject.signal_data('second response body')
+            subject.signal_done
+            expect(subject.body.read).to eq('second response body')
+          end
         end
 
         describe '#signal_headers' do