diff --git a/config.nims b/config.nims
index 25066dcb2..55597522f 100644
--- a/config.nims
+++ b/config.nims
@@ -5,14 +5,26 @@ if defined(release):
 else:
   switch("nimcache", "nimcache/debug/$projectName")
 
+proc addVendorPaths(baseDir: string) =
+  for dir in walkDir(baseDir):
+    if dir.kind == pcDir:
+      # Add the current directory
+      switch("path", dir.path)
+      switch("path", dir.path / "src")
+
+      # If this directory has a vendor subdirectory, process it recursively
+      let vendorPath = dir.path / "vendor"
+      if dirExists(vendorPath):
+        addVendorPaths(vendorPath)
+
 if defined(windows):
   switch("passL", "rln.lib")
 
-  # Automatically add all vendor subdirectories
-  for dir in walkDir("./vendor"):
-    if dir.kind == pcDir:
-      switch("path", dir.path)
-      switch("path", dir.path / "src")
+  # Add all vendor paths starting from the root vendor directory
+  addVendorPaths("./vendor")
+  switch("path", "./vendor/nim-nat-traversal")
+  switch("path", "./vendor/nim-nat-traversal/vendor/libnatpmp-upstream")
+  switch("path", "./vendor/nim-nat-traversal/vendor/miniupnp/miniupnpc")
 
   # disable timestamps in Windows PE headers - https://wiki.debian.org/ReproducibleBuilds/TimestampsInPEBinaries
   switch("passL", "-Wl,--no-insert-timestamp")