diff --git a/src/config.ml b/src/config.ml
index 2697ee1d..9f01ae9e 100644
--- a/src/config.ml
+++ b/src/config.ml
@@ -7,6 +7,9 @@ let local_install_dir =
 let local_install_bin_dir ~context =
   Path.relative (local_install_dir ~context) "bin"
 
+let local_install_man_dir ~context =
+  Path.relative (local_install_dir ~context) "bin"
+
 let local_install_lib_dir ~context ~package =
   Path.relative
     (Path.relative (local_install_dir ~context) "lib")
diff --git a/src/config.mli b/src/config.mli
index c7d7f39a..1fb811c3 100644
--- a/src/config.mli
+++ b/src/config.mli
@@ -6,4 +6,5 @@ open! Import
 val local_install_dir : context:string -> Path.t
 
 val local_install_bin_dir : context:string -> Path.t
+val local_install_man_dir : context:string -> Path.t
 val local_install_lib_dir : context:string -> package:string -> Path.t
diff --git a/src/context.ml b/src/context.ml
index 18b7db54..d3a81783 100644
--- a/src/context.ml
+++ b/src/context.ml
@@ -341,6 +341,7 @@ let env_for_exec t =
                                            (Config.local_install_dir ~context:t.name)
                                            "lib")
     ; extend_var "PATH"                 (Config.local_install_bin_dir ~context:t.name)
+    ; extend_var "MANPATH"              (Config.local_install_man_dir ~context:t.name)
     ]
   in
   extend_env ~env:t.env ~vars:(String_map.of_alist_exn vars)