diff --git a/pkgs/development/tools/analysis/flow/default.nix b/pkgs/by-name/fl/flow/package.nix
similarity index 88%
rename from pkgs/development/tools/analysis/flow/default.nix
rename to pkgs/by-name/fl/flow/package.nix
index 0fb442737540..6699329a4acb 100644
--- a/pkgs/development/tools/analysis/flow/default.nix
+++ b/pkgs/by-name/fl/flow/package.nix
@@ -2,10 +2,17 @@
   lib,
   stdenv,
   fetchFromGitHub,
-  ocamlPackages,
+  ocaml-ng,
   dune,
 }:
 
+let
+  ocamlPackages = ocaml-ng.ocamlPackages.overrideScope (
+    self: super: {
+      ppxlib = super.ppxlib.override { version = "0.33.0"; };
+    }
+  );
+in
 stdenv.mkDerivation rec {
   pname = "flow";
   version = "0.288.0";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 235eee08a479..b92f9406da3b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6200,14 +6200,6 @@ with pkgs;
     haskellPackages.callPackage ../tools/misc/fffuu { }
   );
 
-  flow = callPackage ../development/tools/analysis/flow {
-    ocamlPackages = ocaml-ng.ocamlPackages.overrideScope (
-      self: super: {
-        ppxlib = super.ppxlib.override { version = "0.33.0"; };
-      }
-    );
-  };
-
   gede = libsForQt5.callPackage ../development/tools/misc/gede { };
 
   gdbgui = python3Packages.callPackage ../development/tools/misc/gdbgui { };