diff --git a/overlays/halloy-overlay.nix b/overlays/halloy-overlay.nix
index 690d1c0..03aa5bc 100644
--- a/overlays/halloy-overlay.nix
+++ b/overlays/halloy-overlay.nix
@@ -17,7 +17,7 @@ self: super:
       owner = "squidowl";
       repo = pname;
       rev = version;
-      sha256 = "";
+      sha256 = "sha256-qQ6hNpOqI3yC26KqYYq42KjJw/bMzaXACpGyIXE2axo=";
     };
 
     # RUSTC_BOOTSTRAP = 1;