diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ec3ba83e592d..c233c6552304 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2384,7 +2384,7 @@ let
 
   ocaml_3_10_0 = callPackage ../development/compilers/ocaml/3.10.0.nix { };
 
-  ocaml_3_12_1 = lowPrio (callPackage ../development/compilers/ocaml/3.12.1.nix { });
+  ocaml_3_12_1 = callPackage ../development/compilers/ocaml/3.12.1.nix { };
 
   metaocaml_3_09 = callPackage ../development/compilers/ocaml/metaocaml-3.09.nix { };