diff --git a/internal/cli/execute.go b/internal/cli/execute.go
index b1c3c9b1..c7182eeb 100644
--- a/internal/cli/execute.go
+++ b/internal/cli/execute.go
@@ -240,7 +240,7 @@ func executeRecipe(cmd *cobra.Command, opts executeOptions, re *recipe.Recipe) e
 	if opts.Subpath != "" {
 		files = make(map[string]recipe.File, len(sauce.Files))
 		for path, file := range sauce.Files {
-			files[filepath.Join(opts.Subpath, path)] = file
+			files[filepath.ToSlash(filepath.Join(opts.Subpath, path))] = file
 		}
 	}