diff --git a/zomp/lib/otpr/zx/0.12.3/src/zx.erl b/zomp/lib/otpr/zx/0.12.3/src/zx.erl
index 4078694..32945bf 100644
--- a/zomp/lib/otpr/zx/0.12.3/src/zx.erl
+++ b/zomp/lib/otpr/zx/0.12.3/src/zx.erl
@@ -999,6 +999,7 @@ run_project(ProjectDir, ExecDir, RunArgs) ->
     end.
 
 run_project(ProjectDir, ExecDir, RunArgs, Meta) ->
+    true = os:putenv("zx_include", filename:join(os:getenv("ZX_DIR"), "include")),
     case pre_prep(Meta, RunArgs) of
         {Type, Deps, NewArgs} ->
             {ok, Dir} = file:get_cwd(),
@@ -1083,7 +1084,6 @@ pre_prep4(Deps, {Realm, Name, _}, Dir, Rest) ->
 %% Execution prep common to all packages.
 
 prepare(Deps) ->
-    true = os:putenv("zx_include", filename:join(os:getenv("ZX_DIR"), "include")),
     ok = lists:foreach(fun include_env/1, Deps),
     NotInstalled = fun(P) -> not filelib:is_dir(zx_lib:ppath(lib, P)) end,
     Needed = lists:filter(NotInstalled, Deps),