diff --git a/commands/hugo.go b/commands/hugo.go
index 0cd952348..e1a469e85 100644
--- a/commands/hugo.go
+++ b/commands/hugo.go
@@ -57,12 +57,20 @@ func (u commandError) isUserError() bool {
 	return u.userError
 }
 
-func newUserError(messages ...interface{}) commandError {
-	return commandError{s: fmt.Sprintln(messages...), userError: true}
+func newUserError(a ...interface{}) commandError {
+	return commandError{s: fmt.Sprintln(a...), userError: true}
 }
 
-func newSystemError(messages ...interface{}) commandError {
-	return commandError{s: fmt.Sprintln(messages...), userError: false}
+func newUserErrorF(format string, a ...interface{}) commandError {
+	return commandError{s: fmt.Sprintf(format, a...), userError: true}
+}
+
+func newSystemError(a ...interface{}) commandError {
+	return commandError{s: fmt.Sprintln(a...), userError: false}
+}
+
+func newSystemErrorF(format string, a ...interface{}) commandError {
+	return commandError{s: fmt.Sprintf(format, a...), userError: false}
 }
 
 // catch some of the obvious user errors from Cobra.
diff --git a/commands/undraft.go b/commands/undraft.go
index 89b56c95e..891e1e195 100644
--- a/commands/undraft.go
+++ b/commands/undraft.go
@@ -59,17 +59,17 @@ func Undraft(cmd *cobra.Command, args []string) error {
 
 	w, err := undraftContent(p)
 	if err != nil {
-		return newSystemError("an error occurred while undrafting %q: %s", location, err)
+		return newSystemErrorF("an error occurred while undrafting %q: %s", location, err)
 	}
 
 	f, err = os.OpenFile(location, os.O_WRONLY|os.O_TRUNC, 0644)
 	if err != nil {
-		return newSystemError("%q not be undrafted due to error opening file to save changes: %q\n", location, err)
+		return newSystemErrorF("%q not be undrafted due to error opening file to save changes: %q\n", location, err)
 	}
 	defer f.Close()
 	_, err = w.WriteTo(f)
 	if err != nil {
-		return newSystemError("%q not be undrafted due to save error: %q\n", location, err)
+		return newSystemErrorF("%q not be undrafted due to save error: %q\n", location, err)
 	}
 	return nil
 }