diff --git a/pkgs/by-name/ca/cargo-bisect-rustc/package.nix b/pkgs/by-name/ca/cargo-bisect-rustc/package.nix
index 6138db509936..6e90d5dda528 100644
--- a/pkgs/by-name/ca/cargo-bisect-rustc/package.nix
+++ b/pkgs/by-name/ca/cargo-bisect-rustc/package.nix
@@ -47,7 +47,7 @@ rustPlatform.buildRustPackage rec {
   cargoHash = "sha256-SigRm2ZC7jH1iCEGRpka1G/e9kBEieFVU0YDBl2LfTM=";
 
   checkFlags = [
-    "--skip test_github" # requires internet
+    "--skip=test_github" # requires internet
   ];
 
   meta = {