diff --git a/internal/converter/converter.go b/internal/converter/converter.go
index c6262d8..9a18dca 100644
--- a/internal/converter/converter.go
+++ b/internal/converter/converter.go
@@ -30,8 +30,8 @@ func New() *Converter {
 		order:   make([]Order, 0),
 	}
 
-	cmdOutput := &strings.Builder{}
-	cmd.SetOutput(cmdOutput)
+	var cmdOutput strings.Builder
+	cmd.SetOutput(&cmdOutput)
 	cmd.Usage = func() {
 		fmt.Fprintf(os.Stderr, "Usage of %s:\n", filepath.Base(os.Args[0]))
 		for _, o := range conv.order {
diff --git a/internal/epub/image_processing/epub_image_processing_loader.go b/internal/epub/image_processing/epub_image_processing_loader.go
index cdd7117..69a9d39 100644
--- a/internal/epub/image_processing/epub_image_processing_loader.go
+++ b/internal/epub/image_processing/epub_image_processing_loader.go
@@ -28,16 +28,18 @@ type Options struct {
 }
 
 func (o *Options) mustExtractImage(imageOpener func() (io.ReadCloser, error)) *bytes.Buffer {
+	var b bytes.Buffer
 	if o.Dry {
-		return &bytes.Buffer{}
+		return &b
 	}
+
 	f, err := imageOpener()
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err)
 		os.Exit(1)
 	}
 	defer f.Close()
-	var b bytes.Buffer
+
 	_, err = io.Copy(&b, f)
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err)