1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/applications/science/logic/sad/default.nix b/nixpkgs/pkgs/applications/science/logic/sad/default.nix
index 8e94356f376a..f9b82b5d733b 100644
--- a/nixpkgs/pkgs/applications/science/logic/sad/default.nix
+++ b/nixpkgs/pkgs/applications/science/logic/sad/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation {
       '';
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = [ stdenv.lib.maintainers.schmitthenner ];
-    homepage = http://nevidal.org/sad.en.html;
+    homepage = "http://nevidal.org/sad.en.html";
     platforms = stdenv.lib.platforms.linux;
   };
 }