diff --git a/removetracking.go b/removetracking.go
index a3179a3..157f07e 100644
--- a/removetracking.go
+++ b/removetracking.go
@@ -30,5 +30,9 @@ func removeTracking(input string) (output string, err error) {
 	// used for tracking the referer by some feeds.
 	output = strings.Split(output, "#ref=")[0]
 
+	// Remove the URL part starting with "?ref=", which is
+	// used for tracking the referer by some feeds.
+	output = strings.Split(output, "?ref=")[0]
+
 	return output, err
 }