diff --git a/pkgs/development/ocaml-modules/janestreet/0.15.nix b/pkgs/development/ocaml-modules/janestreet/0.15.nix
index 183a3ff434586..7a463c0a5923c 100644
--- a/pkgs/development/ocaml-modules/janestreet/0.15.nix
+++ b/pkgs/development/ocaml-modules/janestreet/0.15.nix
@@ -1,6 +1,7 @@
 { self
 , bash
 , fetchpatch
+, fzf
 , lib
 , openssl
 , zstd
@@ -380,6 +381,9 @@ with self;
     hash = "1ha0i6dx5bgwzbdi4rn98wjwi2imv5p2i7qs7hy0c6cmg88xbdry";
     meta.description = "A library for running the fzf command line tool";
     propagatedBuildInputs = [ async core_kernel ppx_jane ];
+    postPatch = ''
+      substituteInPlace src/fzf.ml --replace /usr/bin/fzf ${fzf}/bin/fzf
+    '';
   };
 
   higher_kinded = janePackage {
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index f037f5b7cc9d8..0d16023775434 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1597,7 +1597,7 @@ let
     if lib.versionOlder "4.10.2" ocaml.version
     then import ../development/ocaml-modules/janestreet/0.15.nix {
       inherit self;
-      inherit (pkgs) bash fetchpatch lib openssl zstd;
+      inherit (pkgs) bash fetchpatch fzf lib openssl zstd;
     }
     else if lib.versionOlder "4.08" ocaml.version
     then import ../development/ocaml-modules/janestreet/0.14.nix {