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Diffstat (limited to 'pkgs/build-support')
-rw-r--r-- | pkgs/build-support/fetchurl/default.nix | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/pkgs/build-support/fetchurl/default.nix b/pkgs/build-support/fetchurl/default.nix index 294d9a43ef7d..af4a6700153c 100644 --- a/pkgs/build-support/fetchurl/default.nix +++ b/pkgs/build-support/fetchurl/default.nix @@ -66,6 +66,7 @@ in showURLs ? false }: +assert builtins.isList urls; assert urls != [] -> url == ""; assert url != "" -> urls == []; |