diff --git a/pkgs/tools/networking/ngrok-1/default.nix b/pkgs/tools/networking/ngrok-1/default.nix
index 82f6ed4760c..d33b749399f 100644
--- a/pkgs/tools/networking/ngrok-1/default.nix
+++ b/pkgs/tools/networking/ngrok-1/default.nix
@@ -27,7 +27,7 @@ buildGoPackage rec {
     export sourceRoot=$sourceRoot/src/ngrok
   '';
 
-  buildFlags = [ "-tags release" ];
+  tags = [ "release" ];
 
   meta = {
     homepage = "https://ngrok.com/";