diff --git a/R/class_pkg.R b/R/class_pkg.R
index 09a9546..4ba6395 100644
--- a/R/class_pkg.R
+++ b/R/class_pkg.R
@@ -177,7 +177,7 @@ random_repo <- function(..., path = tempfile("repo")) {
   )
   writeLines(dcf, packages_path)
 
-  repos <- paste0("file://", normalizePath(path))
+  repos <- normalizePath(path, winslash = "/")
   names(repos) <- paste0(packageName(), "-generated")
 
   repos