diff --git a/pkgs/by-name/fo/folly/package.nix b/pkgs/by-name/fo/folly/package.nix
index 0aa50ab1bbc2..edcea827a46d 100644
--- a/pkgs/by-name/fo/folly/package.nix
+++ b/pkgs/by-name/fo/folly/package.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "facebook";
     repo = "folly";
     rev = "refs/tags/v${finalAttrs.version}";
-    sha256 = "sha256-INvWTw27fmVbKQIT9ebdRGMCOIzpc/NepRN2EnKLJx0=";
+    hash = "sha256-INvWTw27fmVbKQIT9ebdRGMCOIzpc/NepRN2EnKLJx0=";
   };
 
   nativeBuildInputs = [