diff --git a/lib/protocol/rack/input.rb b/lib/protocol/rack/input.rb
index 90ddc48..2c2c3e3 100644
--- a/lib/protocol/rack/input.rb
+++ b/lib/protocol/rack/input.rb
@@ -60,10 +60,7 @@ def close(error = nil)
 			#
 			# @returns [Boolean] Whether the body could be rewound.
 			def rewind
-				if @body and @body.respond_to?(:rewind)
-					# If the body is not rewindable, this will fail.
-					@body.rewind
-					
+				if @body&.rewind
 					@finished = false
 					@closed = false
 					
diff --git a/releases.md b/releases.md
index d7f7c77..c903c8e 100644
--- a/releases.md
+++ b/releases.md
@@ -1,5 +1,9 @@
 # Releases
 
+## Unreleased
+
+  - Respect the result of rewinding the underlying request body.
+
 ## v0.22.1
 
   - Rack 2 should not use `to_ary`.
diff --git a/test/protocol/rack/input.rb b/test/protocol/rack/input.rb
index a1e6bf0..9425a4d 100644
--- a/test/protocol/rack/input.rb
+++ b/test/protocol/rack/input.rb
@@ -211,4 +211,16 @@
 			expect(input).to be(:closed?)
 		end
 	end
+	
+	with "non-rewindable body" do
+		let(:body) {Protocol::HTTP::Body::Readable.new}
+		
+		it "does not report a successful rewind" do
+			expect(input.read).to be == ""
+			expect(input).to be(:closed?)
+			
+			expect(input.rewind).to be == false
+			expect(input).to be(:closed?)
+		end
+	end
 end