diff --git a/commands.go b/commands.go
index 361a775..46410db 100644
--- a/commands.go
+++ b/commands.go
@@ -292,12 +292,14 @@ func Status(b BotCommand) bool {
 
 func WhitelistURL(b BotCommand) bool {
 	defer log.PanicSafe()
-	config.WhitelistURLs = append(config.WhitelistURLs, strings.TrimSpace(
+	newURL := strings.TrimSpace(
 		strings.ReplaceAll(
 			strings.ReplaceAll(b.Message.Content, b.Command, ""),
 			"<@688025671968096341>", ""),
-	),
 	)
+	if len(newURL) > 0 {
+		config.WhitelistURLs = append(config.WhitelistURLs, newURL)
+	}
 	domains := strings.Join(config.WhitelistURLs, "\n")
 	b.Session.ChannelMessageSend(config.AdminChannel, fmt.Sprintf("Current whitelisted domains: %+v", domains))
 	log.LogDebug(fmt.Sprintf("Current whitelisted domains: %+v", domains))