diff --git a/pkgs/development/compilers/elm/packages/lamdera.nix b/pkgs/development/compilers/elm/packages/lamdera.nix
index 2439ed04cc8b..6e93bd431ced 100644
--- a/pkgs/development/compilers/elm/packages/lamdera.nix
+++ b/pkgs/development/compilers/elm/packages/lamdera.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage = https://lamdera.com;
+    homepage = "https://lamdera.com";
     license = licenses.unfree;
     description = "A delightful platform for full-stack web apps";
     platforms = [ "x86_64-linux" ];