diff --git a/ext/puma_http11/PumaHttp11Service.java b/ext/puma_http11/PumaHttp11Service.java
index da7c2719..00f63aa2 100644
--- a/ext/puma_http11/PumaHttp11Service.java
+++ b/ext/puma_http11/PumaHttp11Service.java
@@ -6,7 +6,6 @@ import org.jruby.Ruby;
 import org.jruby.runtime.load.BasicLibraryService;
 
 import org.jruby.puma.Http11;
-import org.jruby.puma.IOBuffer;
 import org.jruby.puma.MiniSSL;
 
 public class PumaHttp11Service implements BasicLibraryService {