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-rw-r--r--pkgs/build-support/fetchurl/default.nix1
1 files changed, 1 insertions, 0 deletions
diff --git a/pkgs/build-support/fetchurl/default.nix b/pkgs/build-support/fetchurl/default.nix
index 3cd64ed1c02f..a7c76737e1ad 100644
--- a/pkgs/build-support/fetchurl/default.nix
+++ b/pkgs/build-support/fetchurl/default.nix
@@ -87,6 +87,7 @@ in
 
 assert builtins.isList urls;
 assert (urls == []) != (url == "");
+assert sha512 != "" -> builtins.compareVersions "1.11" builtins.nixVersion <= 0;
 
 
 let