diff --git a/SecureDNSClient/Forms/GoodbyeDPI.cs b/SecureDNSClient/Forms/GoodbyeDPI.cs
index 76a3796..b89ec74 100644
--- a/SecureDNSClient/Forms/GoodbyeDPI.cs
+++ b/SecureDNSClient/Forms/GoodbyeDPI.cs
@@ -246,7 +246,7 @@ private async void DPIAdvanced()
             }
             if (CustomCheckBoxDPIAdvBlacklist.Checked)
             {
-                args += $"--blacklist {SecureDNS.DPIBlacklistPath} "; checkCount++;
+                args += $"--blacklist \"{SecureDNS.DPIBlacklistPath}\" "; checkCount++;
             }
 
             string fallbackDNS = SecureDNS.BootstrapDnsIPv4.ToString();