diff --git a/pkg/container/docker_run.go b/pkg/container/docker_run.go
index 985ba2f8d95..e73159c77a8 100644
--- a/pkg/container/docker_run.go
+++ b/pkg/container/docker_run.go
@@ -862,6 +862,7 @@ func (cr *containerReference) attach() common.Executor {
 			errWriter = os.Stderr
 		}
 		go func() {
+			defer out.Close()
 			if !isTerminal || os.Getenv("NORAW") != "" {
 				_, err = stdcopy.StdCopy(outWriter, errWriter, out.Reader)
 			} else {