1 files changed, 2 insertions, 1 deletions

diff --git a/fake-winterop.c b/fake-winterop.c
index cc69179..b16952a 100644
--- a/fake-winterop.c
+++ b/fake-winterop.c
@@ -45,7 +45,8 @@ uint32_t CreateCabBegin(const char16_t *wzCab, const char16_t *wzCabDir,
     ctx->nargs = 0;
     ctx->argsize = 16;
     ctx->args = snewn(ctx->argsize, char *);
-    ctx->args[ctx->nargs++] = dupcat("makecab.py", (const char *)NULL);
+    ctx->args[ctx->nargs++] = dupcat(getenv("WIX"), "/", "makecab.py",
+                                     (const char *)NULL);
     ctx->args[ctx->nargs++] = ctx->outfile;
     *out_ctx = ctx;
     return 0;